Sunday

February 19, 2017
Number of results: 64,813

**Math, Please Help! I don't understand!**

Please help me! I don't understand how to solve. Solve each equation for the given variable. 37. x/a - 1 = y/b for x 39. V = 1/3 * pi * r^2 * h for h What do these equations mean? I am super confused. Please help.

*October 31, 2014 by Hayden*

**Algebra (Does any one understand special factors)?**

I do not understand special factors, the teacher on Friday tried to explain in to me in class but she went so fast, and every time we complain that we don't understand it she gets mad. So could someone please help me with at least one problem so I can understand it better, and...

*April 5, 2009 by Rae Rae*

**history**

I don't understand this question: the removal of general mcclellan represents a loss of the army and the potomac and a victory for the interfering politicans in washington (validate) i know that mcclellan was replaced by grant because he was to hesitant to attack. but i don't ...

*May 28, 2009 by Andre*

**history**

I don't understand this question: the removal of general mcclellan represents a loss of the army and the potomac and a victory for the interfering politicans in washington (validate) i know that mcclellan was replaced by grant because he was to hesitant to attack. but i don't ...

*May 28, 2009 by Andre*

**Chemistry**

I still don't understand how to do this problem; grams/molar mass I understand, but I need to see the steps CLEARLY. 43. How many moles are in 25.0 grams of potassium? Show your work and round your answer to the appropriate number of significant figures. Please, please help ...

*October 23, 2010 by mysterychicken*

**about Engineering**

Electronic and Communication Engineering is mainly Mathematical analysis, implemented in practical circuits. You have to understand higher forms of math, and think in those terms. You have to understand the imperfect models used for systems analysis. You have to understand the...

*May 24, 2007 by bobpursley*

**english**

i do not a understand what a exemplum is. Could someone please help me and give an example to also help me understand. thanks

*October 5, 2010 by Anonymous*

**math**

wx + zy = c Solve for y. I don't understand this. If you know what Carnegie is, then you would know I don't really understand. So please help me. help me with the steps

*October 13, 2016 by jess*

**math**

what kind of book can help me understand about propabilities,please let me know,i am not lazy,but i am really not understand,many thanks

*February 11, 2013 by karen*

**Math**

Okay I understand that your ment to combine like terms but can someone help me understand this question better. Please. 9y-11-5y=25

*October 18, 2016 by Wossum*

**English**

can anyone please summarize the short story "an ordinary soldier of the queen" because I didn't understand it at all and I am very confused ? I read it 3 times but still dont understand what happened, if anyone has read it please help:) very appreciated:)

*November 29, 2016 by Eriha*

**math**

hey i need to understand how to figure out an area of a 3-D prizm. sreached on the web but don't understand it please help

*April 27, 2009 by noor*

**Math**

I understand how to make Stem-and-Leaf plots,but I don't understand what to count by if my numbers are (from least to greatest) 13,14,16,18,20,32,33,52,58,61,and 67.Please help me!!!

*October 18, 2010 by Bethany*

**Chemistry**

I do not understand the acid + base ->conjugate base + conjugate acid Please explain it to me with an example. I really do not understand it and I truly need your help. I do not understand how he hydrogens transfer and stuff like that. Your help is very much appreciated! ...

*March 24, 2013 by Krystien*

**Bio.**

I don;t understand what a taxon is :S I looked at the wikipedia definition and I don;t understand it at all. Could someone please explain it to me a simple terms. Thanks.

*December 8, 2008 by Lena*

**accounting HELP**

I know what the moral standards approach is, but what I do not understand how a stakeholder impact analysis might be done using the moral standards approach. Can somebody explain how to do this? I have already gooled it and still did not understand it. I just need it explained...

*April 24, 2009 by AW*

**Science**

I have to write about water convection, and whenever i look it up, it's using terms that i don't understand. So i don't understand what it is asking, could somebody please help me?

*November 28, 2007 by Dawn*

**Math(Please help)**

I know I posted this yesterday but I really do not understand this and I did not quite understand the comment on what to do. Find the real solutions of the equation. x = 2 sqrt6x-36

*September 20, 2010 by Hannah*

**Physics**

I don't understand anything about the centripital force and torque please HELP me to understand hoe to solve problems relsted to this topics,

*August 29, 2011 by John*

**Physics**

I don't understand anything about the centripital force and torque please HELP me to understand hoe to solve problems relsted to this topics,

*August 29, 2011 by John*

**Physics**

I don't understand anything about the centripital force and torque please HELP me to understand hoe to solve problems relsted to this topics,

*August 29, 2011 by John*

**statistics-PLEASE HELP quick**

I understand most of the formulas however Im not sure what the answers tell me. I did a frequency distribution table for all points scored by a football team over 4 years, but I don't understand what my answers mean and I don't want to look stupid in front of my class. Can ...

*December 16, 2013 by Amy*

**math ergent please please...**

10.a)Solve the inequality x^3-5x^2+2x+8<0 by i) using intervals ii) considering all cases I did this but my teacher said that when i solved this: x^3-5x^2+2x+8<0 (x+1)(x^2-6x+8) (x+1)(x-4)(x-2)<0 She told me to show all the steps, but i don't know how to show more. so...

*November 29, 2013 by kavi*

**algebra**

Solve the following equation: k2 + 4k = 0 By factoring and By using the quadratic formula Can someone please help me to understand how to this problem...I do not understand the steps to get the correct answer. Thanks!!!

*February 28, 2010 by lena*

**Geology**

I need help with a radiometric dating equation. I am trying to determine the age of a sample that has a 40AR/40K ratio of 4.5. I understand the equation of D=Do+N(e^.693t-1). I understand I would set Do to zero. But what is D? I went to geology tutoring and she said to plug 4....

*December 4, 2008 by Aracely*

**english**

Please help me ive been trying to figure this out, but I DO NOT understand it...I do not understand what an embedded sentence is We have to find the embedded sentences in: I deplore the fact that bats have wings. That Guinevere loves Lorian is known to all my friends. please ...

*July 7, 2008 by Anonymous*

**Math, Please Help! I don't understand!**

I need help because I don't understand how to solve this equation. 37. x/a - 1 = y/b for x So... does it mean solve for x? 39. V = 1/3 * pi * radius^2 * h for h So... does it mean solve for h? As you can see, I am really confused. Please help.

*November 4, 2014 by Alexandra*

**AP Biology**

Please could someone explain Glycolysis ? I understand it involves cellular respiration, i believe it is the first step. I understand it uses gluscoes and pyrucate. I do not know what either of these words are. Thank You!

*September 30, 2007 by Margarette*

**Math**

I have no idea how to understand quantitative comparison questions which involves the understanding of arithmetic mean. I need to understand the question first to do the problem, please explain. Thank you

*May 12, 2009 by DANA*

**math**

So i was going over a problem that i didn't understand which is What is the slope of the function described in the table below? x I y 0 | -3 2 | -2 4 | -1 6 | 0 the choices were f) -3 g) 1/2 h) 2 J) 3 i know that the answer is g because my family told me but i don't understand...

*August 12, 2016 by Katherine*

**Calculus**

Find the intervals where the function f(x)=((2x-1)^2)(x-3)^2 is concave up and concave down and find all inflection points. Give decimal answers using two decimal place accuracy. Please help me!!! I really don't understand! and please show your work so that I understand :) ...

*March 17, 2011 by Sam*

**Business Computer Information Systems**

In 3–5 sentences, discuss special considerations for using blogs and wikis in research. I don't understand this question good can you guys please help me understand what i am sopose to do.

*November 9, 2010 by yelena*

**MATH**

how many milligrams are there in a kilogram I give up alejandra. I showed you how to count your way to the answer and you keep posting. We don't give answers but we try to help you understand so you don't need us. Please go back and count your way from milligrams to kilograms...

*September 11, 2006 by alejandra*

**chemistry**

calculate the density of NO3 gas at 0.970mm Hg and 35C Take 1 liter. calculate n in PV=nRT then, density= mass/volume= (n*molmassNO3)/1liter. I STILL DON'T UNDERSTAND HOW TO DO IT COULD U PLEASE EXPLAIN What don't you understand about PV = nRT and how that fits your problem. ...

*January 9, 2007 by TIFFANY*

**business**

I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help ...

*April 22, 2010 by Ann*

**trig**

rules of logarithms: can someone please explain how to do these problems? I understand the rules I just don't understand how they apply 1. e^(3lnx) 2. e^(1+2lnx) thanks!

*January 31, 2009 by Alli*

**math - Please help me to understand**

The average selling price of homes in a certain city is $356,300. Assume the variable is normally distributed with a standard deviation of $64,600. If 396 homes are for sale, how many homes will sell for more than $325,000? (Round up to the next whole number.) I don't ...

*November 28, 2011 by Jennifer*

**math - Please help me to understand**

The average selling price of homes in a certain city is $356,300. Assume the variable is normally distributed with a standard deviation of $64,600. If 396 homes are for sale, how many homes will sell for more than $325,000? (Round up to the next whole number.) I don't ...

*November 29, 2011 by Jennifer*

**Chemistry**

How many kilojoules of heat are absorbed when 1.00L of water is heated from 18 degrees C to 85 degrees C? Can you please explain how to do this problem? I do not understand what to do, or understand the formula.

*May 19, 2010 by Sarah*

**math**

y=1/2x + 3/4 6x+8y=10 Only looking for X Step's in what i did 1.~6x+8(1/2x + 3/4)=10 2.6x+ 8/2x + 24/4 =10 3.(2)(6x+ 8/2x + 24/4 =10)(2) 4.12x+8x+ 24/4=20 5.20x+6=20 6. 20x=14 7. x= 14/20 I don't know what i did wrong. Please help me and if you don't understand the problem I ...

*January 5, 2017 by edgard*

**science**

i do not understand this question and how to anseer it, can someone please help? htt p://i12. tinypic. com/6k8ytdd.jpg the question is in the link because it has a graph that goes along with it that I do not understand, just take the spaces out of the link. but the question is...

*December 17, 2007 by kelly*

**ethics in management**

I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help ...

*April 21, 2010 by Ann*

**business ethics**

I am trying to answer some question for class I am needing to find and understand these theories can someone please explain them or help me find information on them I cannot find anything that I understand searching for these terms are they called some thing else please help ...

*April 22, 2010 by Ann*

**rational functions... PLEASE HELPPPPP**

A rational function that passes through (0,0) and (4, 8/7) has the x-axis as a horiztonal asympotote. It also has 2 vertical asymptotes x=3, x=-3. I understand that to set it up, it is y= ax+b / (x+3)(x-3). I don't understand how to solve for a and b.

*January 27, 2007 by luke*

**chemistry - structure and properties (help)**

I have a revision question which i do not understand please help me out: 45. Explain the following observations: motor oil pours from a can more slowly than water; however, in a jar, the meniscus of motor oil is flatter than the meniscus of water. The answer sheet talks about ...

*June 8, 2011 by Farah*

**biology 11**

i am soo stuck on this question please help. 3. It is hard to understand how seemingly random events like mating could lead to evolution in a particular direction. What must we understand about natural selection that would allow this to happen?

*April 10, 2008 by emily*

**physics**

two point charges are 10.0 cm apart and have chargeso of 2.0 uC (micro)and -2 uC, respectively. What is the magnitude of the electric field at the midpoint between the two charges? i think the answr is zero.. but i don't understand how to get to it...can you please show me in ...

*March 15, 2009 by physics*

**Geometry**

Given IE is congruent to GH, EF is congruent to HF. F is the midpoint of GÌ. Prove the triangles EFI is congruent to HFG. . Can you please help me to understand how to do this problem? I don't understand how to find a proof. Thank you so much for your help.

*November 14, 2016 by Marina*

**English: Shakespeare-Othello**

i need help please. idont understand this question. as he enter desdemona's bedchamber in order to kill her, othello mutters: it is the cause, it is the cause, my soul. what is he talking about? in what way might he be rationalizing Desdemona's murder? i've been at for about ...

*December 2, 2010 by Need Help*

**Chemistry**

Find the pH: 1) A 0.001M solution of HCl 2) A 7.98 x 10^-2 M solution of HNO3 3) 1098L of a solution containing 8.543moles of HBr 4) 120mL of a solution containing 0.005 grams of hydrochloric acid. Please help me with these four. Out of 20 questions i only didn't understand ...

*March 20, 2013 by Katelyn*

**History Please Please**

Could you please explain to me: how was the structure (Collosus of Rhodes) effective for it's stated purpose? I don't understand the question and I need something for my project. Pleaseee.

*October 23, 2011 by Jack*

**algebra**

Solve by factoring: x^2 + 5x = −6 Please help! I have a test next week and this is one of the practice problems and I do not understand this. I will not graduate unless I get a C. Please, Please!! Thank you

*January 30, 2015 by slomo*

**English**

When is greatness is a bad thing. Please don't say when it is misused. I need a good answers please. Thanks in advamce. I don't understand your first sentence. Please clarify and repost. Please note that we don't do students' homework for them. Once you have come up with a ...

*January 5, 2007 by Gina*

**Math**

Please help me! I know I am not showing my work but I don't even know how to solve these! Please help me! Tell whether the given equation has the ordered pair as a solution. 1. y = 6x; (3,16) 2. y = -4x; (-2,8) 3. y = x - 3/4; (2,1 1/4) PLease help me understand how to do ...

*October 17, 2014 by Meredith*

**Science**

Why it's so important to have one set of chemical symbols in the world ? Please no hard answers an easy one for me to understand. Thank You !!! :) PS: by the way this a qs. for my science homework I just don't understand. :) :) :)

*September 15, 2011 by Gen*

**please help with geometry - dilation**

When a square of area 4 is dilated by a scale factor of k, we obtain a square of area 9. Find the sum of all possible values of k. I do not understand...it is not 3/2, as I was told, but I don't understand why? Help?

*February 21, 2013 by Knights*

**Science math**

Can no one help me? I posted a question earlier I don't need answer I need to understand what I did wrong my thinking is that if I have a 2:1 ratio And my total is 99 that if I divide by 3 then I can get the amounts 33x2 is 66, then 33x1 is 33 so it would be 66:33. I used this...

*October 18, 2012 by Maria*

**Science**

I REALLY REALLY NEED HELP SO 1.I need to do an essay asking you (me)to explain what is the difference between erosion,transport,and deposition?... 2.another essay asking me to explain you (me) to explain the destructive and positive effects of a volcanic erupyion?... 3.a short...

*June 14, 2014 by Alia*

**sustainability (wes jackson)**

I need help understanding this article from wes jackson "toward an ignorance based worldview". I understand he does not speak of knowledge as in getting an education of a university, but i cannot understand his point. could anyone please help me.

*November 29, 2010 by gaby*

**Science**

I do understand what the terms balanced energy and the term unbalanced energy mean when it relates to science. Please help me understand.

*November 3, 2015 by Patrick*

**Physics Word Problems**

Could you please explain to me these problems, I don't understand them. Do 100 J of work in 50 s and your power output is? - I got 2, but not sure of the units. A bow is drawn so that it has 40 J of potential energy. When fired, the arrow will ideally have a kinetic energy of...

*October 14, 2007 by Manny*

**chem**

write the balanced half reaction for the reaction of Al3+ to Al (3+ is the oxidation state) i don't understand... wouldn't you just subtract 3 electrons from the Al3+ to make it neutral? and then the final answer would be Al-> Al? please help.. i don't understand..

*April 20, 2009 by Anonymous*

**5th Grade Math**

0.38 = (3 X 0.1) + ( X ) My sons paper instructs us to fill in the missing values. We understand that we are to fill in the two values in the second set of parenthesis, but that is all we understand. Please help...I feel so inadequate because I can't help my child with this ...

*September 7, 2010 by Sabrina*

**Math PLEASE HELP ME!!**

Micheal recives a 9.8% raise. He currently earns $1,789.46 per month. Estimate the amount by which his monthly earnings will increase. Help please I do not understand this problem!! :) SHOW ALL WORK PLEASE & THANK YOU!! :)

*March 7, 2012 by Madelyn Santiago*

**PLEASE VIEW- URGENT!**

I do not understand this question. Could you please explain? "Beneatha is particularly bitter, but Ruth defends Walter. What does Ruth say?" (Act III, SceneI) For Further Reading * A Raisin in the Sun - SraJMcGin, Monday, September 3, 2007 at 7:36pm I remember answering this ...

*September 4, 2007 by Anonymous*

**biology**

I understand that a prokaryotic cell has ribosomes smaller than 70s. But what i don't understand is what 70s accutually means. Please could someone explain what 70s means to me? thank you

*June 11, 2008 by sam*

**u.s history**

How did Montcalm's failure to consult with his Indian allies or to understand their expectations at the battle of Fort William Henry affect the future conduct of the war? ( I'm failing in my history class so can you please help me to understand. You guys are my only help ...

*January 16, 2007 by Webbie*

**it**

Can someone please help me with this. I need some understanding on how to 4] Use IPO for analysis [4] Use Pseudo Code to show your design solution. I am not sure how to do this or how or what to do. Please help me better understand this. Please

*May 16, 2008 by Anonymous*

**Business**

Hi, I'm studying for a test on Desktop Publishing, and the question I'm supposed to look over is "What is the purpose of desktop publishging programs"? I understand it but I just can't figure out how to say it in words. Whenever I look it up I don't understand the deffinition ...

*October 1, 2008 by Dawn*

**English**

How would you interpret the messages in the poem Anne received from her father for her birthday? I read them, but don't understand at all.. of course it makes sense I don't understand.. I am a 10 year old doing a 13 year old's work because I skipped a few grades. But anyway, I...

*June 28, 2011 by Carlie*

**math asap**

I don't understand can you please help bedtime 1. (-5)-(-6)+(-1) 2. (-3.1)-(-7.5)+(+1.8) 3. (-9)+(-2)-(-6)+(-5) 4. (+5.2)+(-2.6)-(-3.7) 5. (-8)-(+7)-(+10) 6. (+4.5)-(-3.25)-(+1.5) Please answer all 6 if possible thanks!

*March 14, 2013 by noahc*

**Math-PLEASE HELP ME**

I do not understand point-slope and standard form. Please help me.

*November 2, 2011 by Jade*

**I NEED HELP. PLEASE**

I do not understand point-slope and standard form. Please help me.

*November 2, 2011 by Jade*

**Math help please I do not understand it**

7 3/5 = ? Yards Please help me a link will be greatly appreciated

*December 14, 2016 by Natalicious*

**Algebra (please help!)**

If y varies directly as x and y is 3 when x is 8, what is the constant of the variation? I don't understand what they are asking and how to solve this. Please help if you can! Thank you so much! :)

*May 29, 2009 by Faith*

**Chemistry**

Calculate the average translational kinetic energy (kJ/molecule) for a molecule of NH3 at 431 K, assuming it is behaving as an ideal gas. I understand how to figure out the kJ/mole, but I don't understand how to get the kJ/molecule that this question is asking for. Can someone...

*April 11, 2010 by Luc*

**math**

Rounding help please! How do I get a child to understand that when rounding to the nearest 100 for example 543 the child doesn't understand that number is between 500 and 600 and not 100 and 200 or something like that. Thanks any help would be appreciated.

*September 27, 2008 by Mattie*

**Algebra**

1. 10a – 8b (-) 4a + 5b 2. 5b + 3c (-) 4b + 3c 3. 6d + 6e (-) 9d – 8e 4. 8x – 3y (-) -4x + 8y 5. 6rs – 7bc (-) 9rs – 7bc 6. 5xy – 9cs (-)-3xy + cs 7. x2 – 6x + 5 (-) 3x2– 2x – 2 8. 3y2 – 2y – 1 (-) -5y2– 2y + 6 9. (7a + 6b – 9c) – (3a – 6c) 10. (...

*June 10, 2016 by ANONYMUS*

**Chemistry**

Dear DrBob222 !!! Would you please help me answers the question that I posted. I really don't understand and need help! Please, Thanks

*February 19, 2010 by Ashley*

**chemistry**

calculate the pressure,in atmospheres, of 2.00 mol helium gas in a 10.0-L container at 27 celcius? Please i don't understand any of this? help please?

*October 16, 2010 by Shayla*

**hISTORY PLEZ HELP!**

In what ways can we honor our veterans? Explain please but no links please, they are hard to understand.

*November 13, 2011 by Jerry Thompson*

**Math -Urgent!!!**

List all the possible rational zeros of f(x)=3x^3-x^2+2x=2. Please help me. I don't understand how to do this. Can someone show me please.

*April 29, 2012 by Tabby*

**Math**

Can anyone please rephrase this. I really can't understand this term. Rotation symmetry: When a shape or design can be turned about its center of rotation, so it fits onto its outline MORE than once in a complete turn(360 degrees) I don't understand this. I don't get what ...

*February 4, 2010 by Sara*

**Algebra**

I don't quite understand how to solve matrices with three variables. If I have the equations: 7x-4y-2z=0 2x-3y+z=-0.25 -2x-2y+5z=0 How can I solve this? I saw the explanation in a site but I didn't understand it. They appeared to make random operations until the matrix was: 1 ...

*March 24, 2012 by Amy*

**calculus**

from the equation: x^4 - i = 0 x^4 = i how do you get: The solutions are the fourth roots of i = cos(pi/2) + isin(pi/2) I don't understand how you get pi/2? please full and detailed explanation please.

*April 14, 2008 by Dom*

**Literature**

Please summerize and help me to understand M.H.Abrams-Structure and Style in the Greater Romantic Lyric? mail me please,thank you for your concern.

*November 4, 2010 by sharif*

**Algebra; PLEASE HELP. D:**

I don't understand anything about writing and graphing exponential decay functions../: Explain please, with an example.

*February 2, 2012 by He's not all bad like his reputation </3*

**8th grade math**

y=1/4x-1 1/2y=x-2 2x+3y=3 3y=5-2x 4x-y=3 4x=y=1 I don't understand this can someone please help me! This is Systems of Equations please work out the problem and explain it how to do it.

*February 16, 2012 by Austin*

**Chemistry Help Please**

i do not understand how to solve this problem, please help 10.0mL 0.5M sulfuric acid can neutralize what volume of 0.5M ammonium hydroxide?

*March 31, 2012 by Robert*

**Math - Please help!**

How does increasing the size of an object affect it's volume to surface area ratio? I don't understand please explain it?

*March 9, 2016 by CeCe*

**Chem Urgency**

Can you explain what the pseudo-gas configuration is? I have the definition but I still don't understand. I have the example.. Sn([Kr] 5s24d105p2) Sn4+ ([Kr]4d10)+4e- I understand the first part but I don't understand the second.

*November 24, 2007 by Sami*

**Chemistry**

An unknown element reacts with bromine to give bromide, MBr3. If 2.809g of the unknown element gives 27.765grams of MBr3, what is the element? ( give the symbol ) I don't understand the M in the MBr3...can someoen please help me with this question ASAP thanks a lot - i know ...

*September 27, 2011 by S-rth*

**Pre calculus**

1. Reference angle for -280 degrees? I do not understand why you add 360???? 2. Theta=? If reference angle =60 and theta terminates in quadrant 3. What does terminate mean? Please show work and explain why. My priority is to understand the concept ... 3. Exact value for sec ...

*December 25, 2013 by Anonymous*

**English**

I can't understand the whole thing that he said. (What is the meaning of the sentence? 1. I can't understand what he said at all. 2. I can't understand some(?) of what he said. 3. I cann understand almost all the things that he said, but not all.)

*August 20, 2010 by rfvv*

**Linerar Equations in 2 Variables**

Complete the ordered pair for the equation y=-10x+18 I have one of the ordered numbers given to me by my instructor, I have to come up with the first one, this is excactly how he gave it to me, but I really don't understand this...Can someone please help me understand it ...

*July 19, 2011 by Catherine*

**History**

I had to read a couple of creation myth stories for my history class, and now I have to write an essay on them. I understand mostly why they are important, but I'm failing to understand the role that nature plays in them. Can someone please tell me what that role is, or give ...

*September 7, 2008 by Courtney*

**math**

Factor completley 12r^2 +36rf +27f^2 5x^5-20x^4+30x^3 Can anyone please help me with these two problems. I have to get them done and do not understand them. Please help me.

*September 5, 2010 by Susan*

**Geometry**

URGENT PLEASE HELP please help me understand how to draw a net, am i supposed to memorize these or is there a method for drawing nets for different shapes.

*February 10, 2013 by haley*

**Math**

5lbs 4oz to metric weight. Show all steps. Please help, I don't understand this cause I'm from Canada so we don't use lbs or oz. please help :)

*January 23, 2014 by Michael*

**Social Studies**

Hi, I'm having a really hard time understanding this concept. I know the answers because my teacher told us them but I don't know why they are the answers. Could you explain them please? 1. Professor Roth's rule is that any student who uses a cell phone in class will be asked ...

*February 1, 2016 by Sarah*