Algebraic Expressions Involving Percent

1.

• A

• B

• C

• D

The expression 1.05x calculates what change to the value of x?

• 50% increase
• 5% increase
• 95% increase
• 95% decrease

A jewelry supply shop buys silver chains from a manufacturer for c dollars each, and then sells the chains at a 40% markup. Write an expression for the retail price of a silver chain.

• .6c
• .4c
• 1.4c
• $40

To find a discount of 30% off of a price of P, which expression should you use to find the final price? 

• 1.30P
• 0.30P
• 0.70P
• 1.70P

The expression 0.70x calculates what change to x?

• 70% increase
• 70% decrease
• 30% increase
• 30% decrease

A coat is on sale for 35% off. The regular price is p. Which expression represents the sale price of the coat?

• p - 0.35

• p - 0.35p

• p - 0.65

• 35p

Margie wants to leave a 20% tip to her server. How can she calculate the total amount she pays (p), including the tip?

• 1.2p

• 0.2p

• 1.02p

• 0.8p

While clearing out some old inventory a store offered 10 percent off any item, i. Which expression can be used to find the DISCOUNT?

• i - 1.1

• 0.1i

• i +0.1

• i - 0.1i

Over the summer gas prices dropped by 3%. Which expression shows the NEW PRICE of a gallon of gas, g?

• g x 0.03
• g - 1.03g
• g - 0.03g
• g - 0.03

A cell phone company dropped the prices on their phones by 9%. Which expression shows the NEW PRICE of the phone, p?

• p - 0.09p
• p - 1.09p
• p x 0.09p
• p - 0.09