M3, Topic A/B Test Review

Solve the following:
(2 + 7 - 1) ÷ 2²

• 16

• 2

• 72.25

• 8.75

(7 + 41) ÷ 2 – 15

• 19

• 9

• 25

• 3

Translate this phrase into an algebraic expression.
8 less than the product of 4 and a number
Use the variable m to represent the unknown number.

• 8 - 4m

• 8m - 4

• 8m + 4

• 4m - 8

Write an algebraic expression for:
three times a number plus 16

• 3(16)+n

• 16n+3

• 3n+16

evaluate bc + 5a  
when  a = 3, b = 4, and c = -6

• 9

• 38

• -38

• -9

a²-b²Evaluate if a=4 and b =-2

• 4

• 20

• -4

• 12

3 - 2a + 3a + 5a

• 5a+3

• 5a-3

• 6a + 3

• 8a+3

6w - 6w + 6w + 9w

• w

• 15w

• 9w

• 6w

Simplify the Expression. 
9z  - 21 - 3z + 10

• Simplified

• 9z - 21 - 7

• 9z - 11 -3z

• 6z - 11

What is the simplified form of this expression
3x+4+5x+3

• 15x

• 8x+7

• 7x+8