Math 7 (7.11, 7.12, 7.13) Review

^_Evaluate
x² + 7 when x = 5

• 59

• 17

• 3

• 32

8y + 12 - 2z
for y = 4 and z = 2

• 40

• 20

• 84

• 34

_^Evaluate
(a + b)^c + ab
when 
a = 3, b = 5, and c = 2

• 26

• 31

• 79

• 49

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

• 9

• 38

• -38

• -9

Evaluate the expression when y = 5
2y² + 3y

• 75

• 65

• 115

• 105

There are t tables in the auditorium. Each table seats 10 people.

Evaluate: If there are 17 tables, how many people can sit in there?

• 170

• 17

• 10

• 27

Figure out what n equals in this equation:
6n + 4 = -26

• n=-6

• n= -5

• n= 8

• n= -4

Solve each equation for the following variable. 
1.     x - 4 = 12

• x = 8

• x = 16

• x = -8

• x = 3

6.    -3x + 5 = -13

• x = -5

• x = 2

• x = -6

• x = 6

Solve for the variable in the questions below:
1) 5 + x = 25

• x = 30

• x = 5

• x = 20

• x = -20