Module 8 Review

A taxi service charges $4.50 to pick someone up and then $0.75 per mile during the ride. Write an expression that can be used to find the cost of a taxi ride for any number of miles, m.

$4.50 + $0.75m

Determine whether the equation is true or false. 3(6z − 4) = 18z − 12

True

It took Mr. Rajesh a total of 9 hours to drive to his grandpa's house. He drove m miles before lunch and 240 miles after lunch. If he drove at a constant speed, what expression can be used to find how many miles Mr. Rajesh drove each hour?

(m + 240) ÷ 9

Evaluate the expression. 8 ÷ 4 × (2 + 3) − 9 =

1

Simplify the expression 10 + 7x - 5 +4x

11x + 5

Simplify the expression 10 + 5x + 8x - 9

13x + 1

What is the constant in the expression 2x + 8y − 15?

15

What are the coefficients in the expression 2x + 8y − 15?

2 & 8

Find an expressions that is equivalent to 25 + 3(a − 5) + 7a.

2(5a + 10)

Evaluate the expression. (60 − 6) × 1/3 + 27 ÷ 3 =

27

Use the Distributive Property to expand 9(3+x)

27+9x

3(b + 10) − 7 = Evaluate the expression when b = 1.5.

27.5

What is the terms in the expression 2x + 8y − 15?

2x, 8y, 15

Use the Distributive Property to expand 5(6 + x)

30 + 5x

5b + 28 = Evaluate the expression when b = 1.5.

35.5

Use the Distributive Property to expand 3(x + 8)

3x + 24

What is the first step in evaluating the expression 6 − (4 ÷ 2 × 5)?

4 ÷ 2

Caroline earned 40 points for writing an essay on a test. She also earned 3 points for every question, q, she answered correctly. What expression can be used to find how many points Caroline earned on the test?

40 + 3q

Match the description with the correct expression. the product of n and 4 plus 7

7 + 4n

Match the description with the correct expression. the product of 7 and the sum of n and 4

7(n + 4)

A goat is placed in a circular pen with a radius of 15 feet. The formula for the area of a circle is A = πr 2 , where r is the radius. If π = 3.14, on how many square feet of grass can the goat graze in the pen?

706.5

Match the description with the correct expression. the sum of 4 and the product of n and 7

7n + 4

Simplify the expression 9 + x - 3 + 6x

7x + 6

Which value for p makes the expressions 9p − 5 and (3 + p)5 equivalent?

8

Simplify the expression 3x + 4 +5x - 1

8x + 3

Determine whether the equation is true or false. 10x − 30 = 8 + 2(x − 3)

False

Silvio made 24 cupcakes. He also made m muffins. Which expression represents how many more muffins Silvio made than cupcakes?

m + 24

What are the variables in the expression 2x + 8y − 15?

x & y