Expression and Percentage

A store uses a markup of 70%. Which expression represents the situations. let x represent the item

• .30x

• 1.70x

• .70x

• .90x

All items are being sold at 30% discount. If the original price of the item is x dollars, what expression can be used to determine the sale price?

• 0.30x

• 1.30x

• 0.70x

• x - 30

The amount of money in a bank account increased by 41.5% over the last year. If n represents the amount of money in the beginning of the year, which expression represents the amount of money in the bank account after the increase?

• n + 0.415n

• n + 41.5n

• 0.415n

• 41.5n

An item with an original price of p dollars is on sale at a 25% discount. Which expression is not equivalent to the price of the item with the discount?

• (1.0p - 0.25p)

• (1.0 - 0.25) p

• 0.75p

• 0.25p

20% off an item can be determined using which two expressions?

• 0.2p

• 0.8p

• p - 0.2p

• p - 0.8p

At a store, a hat has a regular price of x dollars. During a sale, the price of the hat is discounted by 10%. Which expression describes the discounted price, in dollars of the hat?

• 0.1x

• x - 10

• x - 0.1

• x - 0.1x

The population of a city is expected to increase by 6.5% next year. If p represents the current population, which expression represents the expected population next year?

• 1.65p

• 1.065p

• p + 0.065

• 1 + 0.065

A swimmer increases her practice time p by 6% over a month. What is the new time at the end of the month?

• p + 6p

• 1.06p

• p ( p + 6)

• 1.72 p

A percent increase is represented as a

• Markups

• Markdowns

• Tax, tip and service fee

• Discount, coupon, sale

A percent decrease is represented as a

• Markups

• Markdowns

• Tax, tip and service fee

• Discount, coupon, sale