End of Year Review

What is the definition of a variable?

• A letter or symbol that represents an unknown quantity

• The little number or letter used to raise to a power

• The number in front of a variable

• The number with no variable

Which of the following is a unit rate

• 56 miles in 2 minutes
• $4.59 for 3 pounds
• $10 per student
• $30 for 15 minutes

Pat needs 14 sticks of pepperoni to make 28 pizzas.  How many sticks of pepperoni are needed to make 36 pizzas?  

• 15 pizzas
• 252 sticks
• 18 sticks
• 18 pizzas

NO CALCULATOR!!

-5 - (- 3)

• -8
• 8
• -2
• 15

NO CALCULATOR!!

-32/8

• -4
• -5
• 4
• 24

Simplify the expression:
6 + 2(7x - 3) 

• 12 + 7x
• 14x
• 8x + 6
• 9 + 7x

How much tip should you leave if you want to tip 23% at Applebee's on a $27.31 bill?

• $6.28
• $33.59
• $21.03

What is 82% As a decimal?

• 8200
• 820
• 0.082
• 0.82

6z + 3 -4z = 9

• z = 3
• z = 60
• z = 30
• z = 1

Maria borrowed $3,000 at a simple interest rate of 4% per year.  How much did she have to repay after 4 years? (I=PRT)

• $480
• $3,480
• $4,800
• $7,800