Evaluating Expressions

Evaluate 4y  if       y = 3

• 7

• 12

3x + 8   if x = 2

• 13

• 14

• 15

• 16

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

• 20

• 24

• 44

• 4

Evaluate 2r + 1      if   r = 3

• 6

• 5

• 7

• 8

Find the value of the expression.

• -12

• 12

• 14

• -14

• -23

• 14

• 23

• -14

For a monthly family cookout, David buys 3 packages of hot dogs and 4 packages of hamburger patties. Hot dog packages each contain x hot dogs. Hamburger packages each contain y hamburger patties. Complete the expressions for the total number of hot dogs and hamburger patties David buys for 6 cookouts.

• 3

• 4

• 18

• 24

• 7

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

• 9

• 38

• -38

• -9

If y= -3 --> Evaluate 4y+ 2

• -10

• -14

• 14

• 10

If g= -3 and h=10 --> Evaluate h − g

• 103

• -7

• 7

• 13