Tuesday
February 28, 2017

Homework Help: Computers: Operating Systems

Recent Homework Questions About Operating Systems

Chemistry
Thanks to Dr. Bob for answering all these questions! I always do poorly on conceptual problems. Consider the following equilibrium system at 25°C and select the true statement below: H2PO4−(aq) + SO42−(aq) ↔ HSO4−(aq) + HPO42−(aq) ΔG°rxn > 0 at 25°C (1) this ...
Monday, February 27, 2017 by Richard

social studies
1. which of these was a result of the invention of the cotton gin. A. It greatly reduced the need to plant cotton seeds by hand. B.It provided a faster method for separating seeds from cotton fibers C.It enabled slaves to work in factories operating textile machines D.It ...
Monday, February 27, 2017 by Help me

MINNESOTA STUDIES
Multiple Choice 1. Which of the following most contributed to the formation of labor unions? (1 point) cuts to wages rising railroad rates grain elevator measures women working in factories 2. How did the Grange and the Farmers’ Alliance both work to help farmers? (1 point) ...
Monday, February 27, 2017 by NEED HELP PLZZZZ RIGHT AWAY!!!!!

chemisrty
I took 6.22 g of potassium hypochlorite and dissolved it up in a 100.0 mL flask. I then added 8.00 mL of 2.00 M nitric acid. The solution should be able to buffer that addition. How much more (mLs) of the nitric acid can the system take before it is no longer in the buffer zone?
Monday, February 27, 2017 by Storme

Algebra
A rectangle's length is 6 less than twice its width. The perimeter of the rectangle is 36 units. Set up and solve a system of equations to determine the length and width?
Sunday, February 26, 2017 by Carla

Algebra
You walk at a pace of 3 miles per hour, and jog at a pace of 6 miles per hour. You want to cover a distance of more than 18 miles in less than 5 hours. Write a system of inequalities to represent the situation. What is one possible combination of the number of hours you can ...
Sunday, February 26, 2017 by Carla

social studies
what was major cause of problems with the sharecropping system
Sunday, February 26, 2017 by anon

Algebra
You walk at a pace of 3 miles per hour, and jog at a pace of 6 miles per hour. You want to cover a distance of more than 18 miles in less than hours. Write a system of inequalities to represent the situation. What is one possible combination of the number of hours you walk/ ...
Sunday, February 26, 2017 by Carla

Social Studies
1. Which of the following apply to fascism? Select all that apply. A rooted in militarism B extreme nationalism C respect for minorities D blind loyalty to the state I think its A,B, and c ----------------------------------- 2. Which of the following best describes attitudes ...
Sunday, February 26, 2017 by Dave

Algebra
You want to purchase at least 10 tickets to a baseball game, but can spend at most $200. Lower level tickets &8 each, while upper level tickets cost $5. Write and graph a system of inequalities to represent the situation. Give two possible combinations of the number of lower ...
Sunday, February 26, 2017 by Carla

Algebra
A rectangle's length is 6 less than twice its width. The perimeter of the rectangle is 36 units. Set up and solve a system of equations to determine the length and width.
Sunday, February 26, 2017 by Kevin

Algebra
A boat traveled 180 miles downstream and back. The trip downstream took 10 hours. The trip back took 30 hours. Find the speed of the boat in still water and the speed of the current. Solve each system using any method
Sunday, February 26, 2017 by Kevin

Science
Which of these is found inside the solar system? A) Moon B) Nebula C) Galaxy D) Black hole
Friday, February 24, 2017 by JT

History
Please check my answers. Question 1(Multiple Choice Worth 5 points) [06.06 MC] Which answer best describes how the Supreme Court viewed Maryland's taxing of the national bank created after the War of 1812? The Supreme Court decided Maryland was within its rights as a state. ...
Wednesday, February 22, 2017 by Anonymous

Social studies
What was one of the major failures of the New Deal program? A It did not help the poor. B It never reformed the banking system. C It did not end the Great Depression. D The jobs it created did not last. A?
Tuesday, February 21, 2017 by dffdd

physics
A 10kg box is attached to a 7kg box which rests on a 30 degrees incline the coeficient of kinetic friction is mk=0.1 between the box and surface find the rate of acceleration of the system
Tuesday, February 21, 2017 by hellen

Physics
When a mass is hung from a spring stretches it by 15 cm. What is the period of the oscillations of this system?
Tuesday, February 21, 2017 by Jack

Math 115
While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the building itself to collect, ...
Monday, February 20, 2017 by Stacy

Math
While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the building itself to collect, ...
Monday, February 20, 2017 by Karola

math 1
system of linear equations of substitution. a=2/b-3 a=2b-8
Monday, February 20, 2017 by Rocky

algebra
system of equations c-3d=27 4d+10c=120
Monday, February 20, 2017 by Rocky

Math
While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the building itself to collect, ...
Sunday, February 19, 2017 by Karola

Laws of Physics
A block and tackle has a velocity of 6 and it is being used to raise a mass of 68 newtons through 3 meters. The efficiency is 60% Calculate the amount of energy needed to lift the mass through 3 meters and calculate the amount of energy that was put into the system and the ...
Saturday, February 18, 2017 by Laura

Psychology
15. How might adolescents’ tendency to engage in such risky behaviors as unsafe sex and experimental drug use reflect brain development during childhood and adolescence? a) The limbic system does not develop fully until early adulthood; adolescents therefore have a poor ...
Saturday, February 18, 2017 by Muhammad

math
Fair Race Portfolio Template: Functions Instructions: Follow the instructions provided in the lesson. Use this template to record your work and answers. Please submit this template to the dropbox along with any other evidence you would like to provide for this portfolio. 1. ...
Friday, February 17, 2017 by help

business communication
please help me to revise this paragraph I’m contacting you about your recent email request for technical support on your cable internet service. Part of the problem we have in tech support is trying to figure out exactly what each customer’s specific problem is so that we ...
Friday, February 17, 2017 by JP

math
Is it possible to write a second linear equation to create a system that had one solution and the same y-intercept as -9x+3y=12?
Thursday, February 16, 2017 by Anonymous

Government
Karl Marx introduced liberalism in one of his communists manifestos. How does Liberalism handle the war on terrorism today? Is liberalism the better approach to terrorism or could conservatism have a more meaningful approach? If so,why? In my opinion, I think that liberalism ...
Thursday, February 16, 2017 by Hunter

Effective Learning Environment
Which of the following is an accurate statement about improving air quality? A. Burning candles can help to mask odors and to clean the air. B. Humidity should be below 40% to reduce mold and increase children's natural mucus. C. It's important to ventilate buildings by ...
Wednesday, February 15, 2017 by Priscila

Economics
Identify four characteristics of capitalists and socialist system of government
Wednesday, February 15, 2017 by Nana Adwoa

STE
A polling firm, hired to estimate the likelihood of the passage of an up-coming referendum, obtained the set of survey responses to make its estimate. The encoding system for the data is:   If the referendum were held today, estimate the probability that it would pass.  0...
Wednesday, February 15, 2017 by ALIA

Science
An insect of mass 20g crawls from the centre to the outside edge of a rotating disc of mass 200g & radius 20cm. The disc was initially rotating at 22.0 rad/s. What will be it's final angular velocity? What is the kinetic energy in the system?
Wednesday, February 15, 2017 by Jitender

social studies
how did the spoils system affect president james Garfield and his successor Chester A. Arthur?
Tuesday, February 14, 2017 by Dream

physicalcs
A block having a mass of m=15 is suspended via two cables. The angles are as follows: a=19-degree, and b=26-degrees. a) write an expression for the sum of the forces in the x direction in terms of T1, T2, m, g, angle a and b. Use the specified coordinate system. b) write an ...
Monday, February 13, 2017 by dalia

physics
With a block of mass m , the frequency of a block-spring system is 1.8Hz. When 50g is added, the frequency drops to 1Hz . Find m and the spring constant.
Monday, February 13, 2017 by kara

Trigonometry
A point on the rim of a wheel of unknown radius in a pulley system has a velocity of 16 in/min. The wheel is making 4 rpm. If the radius of the other wheel is 8 inches, find the 8" wheel's rpms and the unknown wheel's radius. I got a radius of about 0.637" for the unknown ...
Monday, February 13, 2017 by MB

Social Studies
Quote: We seek no conquest. All we ask is to be let alone." - Jefferson Davis According to this quote, which statement best summarizes the South's agenda? ~ to continue their way of life unchanged *** ~ to accept changes to the plantation system ~ to change the South's borders...
Monday, February 13, 2017 by Not cheating

Trigonometry
A pulley system consists of a 10 inch wheel and another whose radius is unknown. A point on the rim of the wheel of unknown radius moves 450 inches when it revolves through an angle of 225 degrees. Find the angle the 10 inch wheel turns through
Sunday, February 12, 2017 by MB

Chemistry
A 14.9g of lead at 92.5C is dropped into a calorimeter with 165g of water at 20.0C. The final temperature of the system is 20.2C. What is the lead's specific heat? -Could I get help setting this up? I'm not sure how I'm supposed to set it up.
Sunday, February 12, 2017 by Nav

Algebra
John and Kathleen each improved their yards planting rose bushes and shrubs . They bought their supplies from the same store. John spent $228 on 12.rose bushes and 11 shrubs. Kathleen spent $108,on 6 rose bushes and 5 shrubs. Find the cost of one rose bush and the cost of one ...
Sunday, February 12, 2017 by Kevin

Algebra
Write a system of equations to solve each word problem. You deposit a total of $900 in two different accounts. One account provides an interest rate of 5% while the other account provides an interest rate of 8%. If you earned a total of $64.50 in interest between the two ...
Sunday, February 12, 2017 by Kevin

Algebra
Set up and solve a system of equations The school that Joe goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 12 adult tickets and 2 child for a total of $122. The school took $160 on the second day by selling 7 adult tickets and 8...
Sunday, February 12, 2017 by Angie

math
(19) Does the following system of equations have a solution? If it does, find one; if not, explain why not. √ x + √ y = 1 r 4x 9 − r 25y 64 = 1
Sunday, February 12, 2017 by sukh

Algebra
Set up a system of equations for each word problem One scuba diver starts at a depth of 12 meters below the water's surface and ascends at a rate of 1 meter per second. A second diver starts at a depth of 15 feet and ascends at a rate of 2 meters per second. After how many ...
Sunday, February 12, 2017 by Kevin

Algebra
Set up and solve a system of equations for each problem John and Belinda are selling pies for a school fundraiser. Customers can buy apple pies and cherry pies. John sold 3 apple pies and 9 cherry pies for a total of $183. Belinda sold 6 apple pies and 13 cherry pies for a ...
Sunday, February 12, 2017 by Zoe

physics
Question 01: 2.0g of Nitrogen gas is at 270C in a fixed volume. If 20% of its total internal energy is due to rotation what is the average velocity of nitrogen molecules? What will be the temperature 2.0 g of Helium gas in a fixed volume if the average velocity of its ...
Sunday, February 12, 2017 by hash

Physics
If the heat of 110J is added to a gaseous system, change in internal energy is 40J, then the amount of external work done is?
Sunday, February 12, 2017 by Anshu

Physics
a periscope is an optical instrument made of two plane mirrors inclined at an angle 45 with respect to the axis of the tube. an observer places her eye at point O. draw the path of a ray light issued from A. determine the position and the nature of the image of A given by two ...
Saturday, February 11, 2017 by Sarah

math
What is the solution of the system of equations? y=5/6x+1 −x+y=2 Enter your answer in the boxes.
Saturday, February 11, 2017 by Jay

math
What is the solution of the system of equations? 13x−6y=2 3x−4y=−10 Enter your answer in the boxes.
Saturday, February 11, 2017 by Jay

Government
Which is a more stable governmental system? Authoritarian or Democratic? I know democratizing countries can be more unstable. However, authoritarian countries like China and Russia are becoming more centralized and are limiting civil liberties in their country.They operate ...
Friday, February 10, 2017 by Lisa

Physics
In an inelastic collision, a steel ball of mass 200 g was hit hard into a large ball of dough of mass 700 g. The velocity of the steel ball was 25m/s. After the collision, the steel ball was stuck in the dough, and this combined system rolled for some time. What was the ...
Friday, February 10, 2017 by kek

math
A birch tree that is 4 ft tall grows at a rate of 1 ft per year. A larch tree that is 6 ft tall grows at a rate of 0.5 ft per year. Let the variable t represent time in years and h represent height in feet. In how many years will the trees be the same height? Which system of ...
Thursday, February 9, 2017 by Jay

math
What is the solution of the system of equations? 13x−6y=2 3x−4y=−10 Enter your answer in the boxes.
Thursday, February 9, 2017 by Jay

Algebra With Pizzazz
I missed a week of school and I know nothing. Next thing I know we get page 163 and have to do everything on it. I don't know anything it's on System of equations substitutinal method.
Thursday, February 9, 2017 by Annie

science
The Sun is unusual because it does not belong to a ____ ? A) solar system B) universe C) galaxy D) binary star system I think the answer is D but I'm not 100% positive.
Thursday, February 9, 2017 by Anonymous

social studies
1.How have humans negatively impacted the water system of Arkansas? Select all that apply a.The construction of the MKARNS has resulted in more flooding. b.Chemicals and runoff from industry harm wildlife. c.Too much trade along the rivers damages the banks. d.Sediment from ...
Wednesday, February 8, 2017 by nobody

math
What is the y-coordinate of the solution of the system of equations? y=2x+14 −4x−y=4 Enter your answer in the box. y = ?
Wednesday, February 8, 2017 by Jay

social studies
Check my answers please Which of the following is the best example of the growing fear of communism and foreigners that America was experiencing in the 1920s? 1. labor unions losing supporters 2. the john scopes trial 3. the harlem renaissance 4. the sacco and vanzetti trial ...
Wednesday, February 8, 2017 by anonymous

Physics
I have this very confusing two part question that i am having trouble understanding. For the first question i first created a free body diagram to show the forces acting on both the boxes. However i am unsure of what to do after this since i don't understand how to use newtons...
Tuesday, February 7, 2017 by joe

Social Studies
Which of the following is a major example of Abraham Lincoln's policy of leniency toward the defeated South? A. Pres Lincoln's willingness to have federal government assume responsibility of the Confederate government's war debts. B. Pres Lincoln's choice to have a Southerner ...
Tuesday, February 7, 2017 by Help please

math plzzz help quick
What is the y-coordinate of the solution of the system of equations? {y=2x+14 {-4x-y=4 Enter your answer in the box. y =
Monday, February 6, 2017 by lily

math plzzz help quick
What is the y-coordinate of the solution for the system of equations? {x-y=-11 {y+7=-2x Enter your answer in the box. y =
Monday, February 6, 2017 by lily

value
An Effort Of 250N Raises A Load Of 1000N Through 5m In A Pulley System.If The Effort Moves 30m,what Is; (a)the Work Done In Raising The Load (b)the Work Done By The Effort (c)the Efficiency
Sunday, February 5, 2017 by mr.m

physics
The drawing shows two blocks that are placed at the ends of a massless board. The board is balanced on a support that serves as an axis of rotation. The block on the left has a mass of 5.8 kg. What is the moment of inertia of this system about the axis of rotation?
Friday, February 3, 2017 by Tyler

Physics
There is a block of mass 1 on a frictionless surface attached to a string. The string goes over a frictionless pulley. The pulley is a hoop with a rotational inertia of I=MR^2. The other end of the string is attached to a hanging block of mass 2. The hanging block is then ...
Friday, February 3, 2017 by Gill Walker

History
Which one of the following would likely be the action of one who supports the 18th Amendment? A organizing and hosting a rally for the Women’s Temperance Union B setting up a system of distribution for bootlegged alcohol C appealing to Congress that women deserve the right ...
Friday, February 3, 2017 by Need help

Social Studies
in 3-5 sentences describe the apportionment system for state legislative districts I cant seem to think of any please help
Friday, February 3, 2017 by joel

math
What is the value of x + y in the solution to the system of equations below? x + 8y = 2 y = -0.25x I just need the best explanation so i can do all my other problems cause im confused.
Thursday, February 2, 2017 by edgard

History
1. What was the effect of the Bull moose party's entrance into the presidential election of 1912? A. It split the Republican vote and allowed the Democrats to win. ** B. It prevented any of the three parties from winning a majority of electoral votes. C. It split the ...
Thursday, February 2, 2017 by Hey Hey Hey

Check answers please: Health
1. When reading a recipe's ingredients, which substance makes the recipe an unhealthy choice if it is present in a high amount? A. Fiber B. Protein C. Trans fat*** D. Unsaturated fat 2. Of the five food groups, which one should be consumed in the smallest amount? A. Dairy*** B...
Thursday, February 2, 2017 by ThatOneLoaf

History
1. What belief united the Progressive movement? A) that society's problems could be solved B) that education needed reform C) that there should be a federal income tax D) that political bosses should not hold office 2. What was the main reason for the creation of the civil ...
Thursday, February 2, 2017 by Amilia

algebra
Plumber chargers $60 an hour. Plumber B chargers $40 to visit your home plus $55 for each hour. for hop many hours will the total cost for each plumber be the same? how much will that cost be? Define your variables: Write a system of equations: solve the system of equation ...
Wednesday, February 1, 2017 by kasidy

Math
System Of Elimination: Greg invested $11,000 in two accounts. The first account pays 5% interest per year. The second account pays 8% interest per year. Greg earned a total of $752.50 in interest at the end of the first year. How much did Greg invest in the 5% account? ~I don'...
Wednesday, February 1, 2017 by edgard

science
Which of the following set of terms could be used in a description of the peripheral nervous system? A)motor neurons and sensory neurons B) brain and spinal cord C)motor neurons and brain D) sensory neurons and spinal cord
Wednesday, February 1, 2017 by HELP

American Government
5. Which of the following is an example of checks and balances in government? A. Congress can override a presidential veto by a two-thirds vote in each house. B. The legislature and judiciary work together to enact legislation. C. The president appoints the members of the ...
Wednesday, February 1, 2017 by Abby

American Government
I want to see if my answers are right. Here are just a few for now. 1. Which statement accurately explains the key difference between the divine right of kings and a constitutional government? A. The divine right of kings and a constitutional government are based on the idea ...
Wednesday, February 1, 2017 by Abby

Social Studies
5. How did zoning laws help to reduce the danger from pollution? A) They required factories to limit their use of chemicals. B) They kept factories outside of residential neighborhoods. C) They relocated factories to rural areas far away from cities. D) They established ...
Tuesday, January 31, 2017 by YunoGasai

Math (Elementary Linear Algebra)
Find the general flow pattern of the network. 20<---A |\B__>x(4) |/ 80<---C I believe the system of equations for A,B,&C is-A: x(1)+x(3)=20 B: x(2)=x(3)+x(4) C: 0=x(1)+x(2) Assuming flows are all nonnegative, what is the largest possible value for x(3). Sorry, this ...
Tuesday, January 31, 2017 by Sara

science
The orbits of planets being elliptical was one the planetary laws developed by ==A. Kepler. B. Brahe. C. Ptolemy. D. Copernicus. If a car travels from Town A to Town B on one road at different speeds and stops at red lights, knowing the distance between the towns and the ...
Tuesday, January 31, 2017 by Check answers please

Algebra
3. What would be the simplest way to solve the system? y=1/2x 2x + 3y = 28 A. Graphing B. Substitution***** MY ANSWER! C. Elimination D. Distributive 4. What is the solution of the system? y=-3x 2x + 3y = 6 A. (2,6) B. (-1,3) C. (-2,6)*****MY ANSWER! D. (1.5, -4.5) Please help...
Tuesday, January 31, 2017 by Glad To Help

History
The purpose of the totalitarian system is the creation of a new and just society. Why this goal is not achieved? / ESSAY /
Tuesday, January 31, 2017 by Alexsandyr

physics
a truck of mass 5000kg is used to tow a jeep of mass 2500kg, the truck moves with a speed of 3.0ms(power -1) just before the towing rope becomes taut,calculate the speed of the truck just before the towing rope became taut,loss of kinetic energy of the system just after the ...
Monday, January 30, 2017 by David

Social Studies
Buddhism became popular in part because it did not defend.... 1. dharma 2. the Hindu gods 3. the caste system**** 4. life after death This religion believes that the way to stop suffering is to stop desire 1. Buddhism*** 2. Judaism 3. Hinduism 4. Jainism This religion believes...
Monday, January 30, 2017 by Anonymous

chemistry
Calculate ∆S universe for the process H2O (s) → H2O (l) given that ∆Hfusion = 6.02 kJ/mol and ∆S system = 22.1 J/K mol . Remember that ∆S surrounding = -∆Hsystem / T. a) -20oC b) 0oC c) 20oC
Sunday, January 29, 2017 by Mi

Physics
Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 38 km away, 19deg north of west, and the second team as 28.7 km away, 35deg east of north. When the first team uses its...
Sunday, January 29, 2017 by Sarah

La state history
in 3-5 sentences describe the apportionment system for state legislative districts I cant seem to think of any please help. Ms.Sue
Sunday, January 29, 2017 by Brah

Math show work
If a hypothetical planet in our Solar System had a sidereal period of 11.1 Earth years and a circular orbit, how far from the Sun in Astronomical Units would it be? Enter your answer to the nearest 0.01 AU.
Saturday, January 28, 2017 by help

Math
If a hypothetical planet in our Solar System had a sidereal period of 11.1 Earth years and a circular orbit, how far from the Sun in Astronomical Units would it be? Enter your answer to the nearest 0.01 AU.
Saturday, January 28, 2017 by johhny 5

PHYSIC
A PULLEY SYSTEM HAS A VELOCITY RATION OF 6 AND EFFECERIY OF 90% calculte the value of the effort required to l 500N
Saturday, January 28, 2017 by PETER .J.KUFA

physics
IF a particular galaxys has a total mass of 10 to the 56 grams and the average star in that galaxy has a mass of 10 to the 35 grams, approximately how many stars are there in that galaxy? Give your answer to the nearest whole power of 10 by entering the exponent only. A ...
Saturday, January 28, 2017 by arias

Math
If an object which weighs 100 lbs on the Earth's surface were placed on a planet with 2 times the radius of the Earth and with 7 times the Earth's mass, how much would that object weigh? Enter answer to nearest 0.1 lbs. The term "void ratio" means the ratio of the volume of ...
Saturday, January 28, 2017 by james bond

physics
1.A certain spacecraft is 3.3 AU (Astronomical Units) from Earth. How long in seconds does it take for a signal to reach the Earth after it is transmitted from the spacecraft? Hint: An AU is about 149.9 Million Km, and light moves at 299,800 Km/s. {Indicate your answer to the ...
Saturday, January 28, 2017 by jere

Social Studies
1. What belief united the Progressive movement? A) that society's problems could be solved B) that education needed reform C) that there should be a federal income tax D) that political bosses should not hold office 2. What was the main reason for the creation of the civil ...
Friday, January 27, 2017 by YunoGasai

Social Studies
Are these correct? _ The maquiladoras zone helped create jobs by encouraging development where? A. Northern Mexico (B.) Southern Mexico C. Baja Pennisula D. Mexico City suburbs _ The United States wields significant power in the A. Association of Southeast Asian Nations (ASEAN...
Wednesday, January 25, 2017 by Anonymous

physics
Two cars (A and B) of mass 1.1 kg collide. Car A is initially moving at 18 m/s, and car B is initially moving in the opposite direction with a speed of 9 m/s. The two cars are moving along a straight line before and after the collision. (Enter the magnitudes.) If the two cars ...
Tuesday, January 24, 2017 by jake

math
Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks. Ella is starting a business selling handmade necklaces. She has decided to invest an initial amount of $57 for advertising, and materials cost $7 for each necklace ...
Tuesday, January 24, 2017 by dmoney

Math - Algebra 1
A field must be fenced in. There is 212 yards of fencing material to be used. What should the dimensions of the enclosed area be to ensure that is has the largest area possible? (system of equations) Dimensions_____________________
Tuesday, January 24, 2017 by Lauren

Math - Algebra 1
Each cow eats 4.5 cups of feed a day and the bucket it comes in contains 250 cups. The buckets cost $26.75 each. If a farm has 16 cows, how much will it cost to feed all of the cows for 1 week? (system of equations) Cost____________________
Tuesday, January 24, 2017 by Lauren

Social studies
how did the spoils system affect president james Garfield and his successor Chester A. Arthur?
Monday, January 23, 2017 by Liziana

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