Evaluating Expressions

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

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

• 6
• 8
• 12
• 16

g²-3(h-g)Evaluate if g=3 and h=-2

• 6
• 9
• 24
• 5

Write an algebraic expression for "12 more than number". 

• x + 12
• 12x
• x - 12

Write an algebraic expression for "8 less than a number".          

• 8x
• x - 8
• 8 - x

Evaluate 7 + j if     j = -2

• -14
• 14
• 5
• 9

Evaluate 2r + 1      if   r = 3

• 6
• 5
• 7
• 8

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4

Evaluate 6ab + 2c if a = 3, b = 10, and       c = 7

• 19
• 194
• 180
• 14