Evaluating Expressions and Solving Equations

What is the value of the expression
x² + y² + x - y 
when x = -1 and y = 3

• 6
• 8
• 12
• 16

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

• 9
• 38
• -38
• -9

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

g²-3(h-g)Evaluate if g=3 and h=-2

• 6
• 9
• 24
• 5

What is the first step in solving this problem:
-12 ÷ 6 (-3) + 8

• multiplication
• addition
• division
• subtraction

Solve the following:
-12 ÷ 6 (-3) + 8

• -14
• 2
• -22
• 3

Solve the following:  
8 + (-4) ÷ 4

• -7
• 1
• -1
• 7

Solve the following:
-5 (- 6) + 10

• -1
• 40
• -20
• 21

Solve the following:
3 + 27 ÷ (-3)

• -6
• -10
• 10
• -12