Evaluating an Algebraic Expression

2x + 5(y - 1) when x=8 and y=5

• 20

• 31

• 36

• -4

(y + z)² when y=5 and z=2

• 7

• 49

• 29

• 14

Evaluate the expression for n = 2 and p = 7.
np =

• 9

• 5

• 15

• 14

Evaluate n + 5² for n=3

• 13

• 8

• 25

• 28

5(10-a) use a=6

• 50

• 4

• 20

• 1

Danika earns money for a house by tutoring and walking dogs. She earns $80 for every hour she tutors, and $25 for every dog she walks. Which expression can be used to determine the amount of money, in dollars, Danika earns from tutoring t kids and walking w dogs?

• t + w

• 80w + 25

• 80t + 25w

• 80 + 25w

The school wants to order T-shirts that cost $10 each plus a shipping fee of $5 per order. Identify which algebraic expression represents the total cost of ordering "c" T-shirts.

• 15c

• 10c + 5

• 10 + 5c

Village Pizza on Tulip Avenue sells pies for $16.50. There is an additional $5.50 fee for delivery. Let p represent the number of pizzas. Write an algebraic expression that can calculate any delivery order. What is the cost of 12 pies being delivered to Kevin Leary's house?

• 16.50p + 5.50; Total cost = $203.50

• 12p + 5.50; Total cost = $203.50

• 16.50p + 12; Total cost = $203.50

• 16.50p + 5.50; Total cost = $198

Find a numerical expression that represents the sum of x squared and 3, multiplied by 6.

• (x²  + 3) X 6

• (2x + 3) X 6

• x² + 3 X 6

• 2x + 3 X 6

Find the value of the expression.

• -12

• 12

• 14

• -14