# math

1. 3(y + 1) for y = 2 (1 point)
6
9
7
8
2. start fraction lower d plus lower g over lower h end fraction for d = 45, g = 18, and h = 9 (1 point)
6
7
3
4
3. The cost in dollars of a class party is 59 + 13n, where n is the number of people attending. What is the cost for 44 people? (1 point)
\$116
\$587
\$767
\$631
4. Write a word phrase for p ÷ 3. (1 point)
a number plus 3
the product of a number and 3
the quotient of a number and 3
a number decreased by 3
5. A major league baseball player chews 17 pieces of gum per game. Write an algebraic expression to show how many pieces of gum he might chew in n games. (1 point)
n + 17
start fraction n over 17 end fraction
17n
17 – n
Use mental math to solve the equation.
6. x – 14 = 13 (1 point)
27
–27
1
–1
7. Jamie owns about 3 times as many books as Carly. Jamie owns 42 books. Write an equation and use it to estimate the number n of books Carly owns. (1 point)
3n = 42; about 14 books
n + 2= 42; about 40 books
n ÷ 3 = 42; about 126 books
n – 2 = 42; about 44 books
8. –13x = –78 (1 point)
6
–6
1,014
–1,014
9. Solve.

start fraction r over 8 end fraction equals negative 6 (1 point)
negative 48
negative eight-sixths
negative start fraction 1 over 48 end fraction
48
10. 12.4x + 7.7 = 82.1 (1 point)
0.7
7
0.6
6
11. Gabriella owned so many CDs that she gave 64 of them away. After donating the CDs, she still had 147 left. Write and solve an equation to find the number of CDs c Gabriella had originally. (1 point)
c + 64 = 147; 83 CDs
c + 147 = 64; 83 CDs
c + 147 = 64; 211 CDs
c – 64 = 147; 211 CDs
Graph the solution of the equation.
12. b – 5 = –8 (1 point)
A number line with numbers ranging from negative 5 to 5 is shown. A closed circle is on negative 3.
A number line with numbers ranging from negative 5 to 5 is shown. A closed circle is on 3.
A number line with numbers ranging from negative 5 to 5 is shown. A closed circle is on negative 4.
A number line with numbers ranging from negative 5 to 5 is shown. A closed circle is on 4.
Use number sense to solve the equation.
13. 5x + 10 = 15 (1 point)
3
1
5
25
14. Suppose you are driving to visit a friend who lives far away. You are driving at an average rate of 55 miles per hour. You must drive a total of 295 miles. If you have already driven 20 miles, how long will it take you to reach your destination? (1 point)
2 hours
5 hours
3 hours
4 hours
15. Find a solution to the inequality x > 7. (1 point)
9
5
1
7
Write the inequality for the graph.
16. A number line is shown from negative 7 to 7 with interval marks representing one unit. A solid dot is drawn at 3, and a ray is drawn pointing to the left of 3. (1 point)
x > 3
x < 3
x ≥ 3
x ≤ 3
17. Write an inequality to model the situation: The number n of people who applied for the job was at least 6. (1 point)
n > 6
n < 6
n ≥ 6
n ≤ 6
Solve the inequality.
18. x + 17 ≤ –5 (1 point)
x ≤ 12
x ≤ –12
x ≤ 22
x ≤ –22
19. 2z > –28 (1 point)
z > –56
z > –14
z < –14
z < 14
20. –0.6n ≤ 9.6 (1 point)
n ≥ –16
n ≥ 16
n ≤ –16
n ≤ 16
21. Your class collected more than 380 cans of food for the annual food drive. In the first week, 145 cans were collected. How many cans c of food were collected in the second week? Write and solve an inequality. (1 point)
145 + c < 380; c < 235
c + 145 > 380; c > 525
c – 145 ≥ 380; c ≥ 525
145 + c > 380; c > 235
Solve the inequality. Graph the solution.
22. x – 1 ≤ 6 (1 point)
A solution is shown graphed on a number line. A number line has numbers ranging between negative 10 and 10. A closed circle is shown on the number line at 7. The number line is shaded to the left of this closed circle.
A solution is shown graphed on a number line. A number line has numbers ranging between negative 10 and 10. A closed circle is shown on the number line at 5. The number line is shaded to the left of this closed circle.
A solution is shown graphed on a number line. A number line has numbers ranging between negative 10 and 10. A closed circle is shown on the number line at 7. The number line is shaded to the right of this closed circle.
A solution is shown graphed on a number line. A number line has numbers ranging between negative 10 and 10. An open circle is shown on the number line at 7. The number line is shaded to the left of this open circle.

23. Leslie decides to join a gym. She must pay a monthly fee plus a one-time fee to open a membership. This situation can be modeled by the expression 55x + 80. Explain how each number and letter in the expression relates to the problem. (3 points)
24. Your friend thinks that the equation k – 3.5 = 21 is a true statement. Is your friend correct? Explain. (2 points)

1. 👍
2. 👎
3. 👁
1. So where are your attempts to solve these?
By the way three times three is nine.

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2. 👎
👤
Damon
2. i know the answers but i aint getting ban so good luck

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2. 👎

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