Equivalent expressions

A dress is discounted 40%. Which expression shows the new price of the dress?

• 0.6p

• 1 -0.4p

• 1 + 0.6p

• 1.4p

Choose the expressions that shows a $45 dollar watch discounted 25%.

• 45 - .25 = 44.75
• 45 + .25(45) = 1.25(45)
• 45 - .25(45) = .75(45)

A hat costs x dollars and you can use the expression x - 0.20x to find the cost of the hat with a 20% discount. Which of the following would also get you the discounted price?

• 1.2x

• 3x

• 0.8x

• 0.2x

Which of the following expressions is a representation of how Henry got a 3.5% tax added to the price of his house, h? 

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. HINT: There are two answers!

• .6c

• c + 0.40c

• 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? HINT: There are two answers!

• 1.30P

• P - 0.30P

• 0.70P

• 1.70P

To find a discount of 15% off of a price of B, which expression should you use to find the final price? HINT: There are two answers!

• B - 0.15B

• 0.85 + B

• 0.15B

• 0.85B

Janel's dog weighs p pounds. Keyli's dog weighs 25% more than Janel's dog. Which expression represents the weight, in pounds, of Keyli's dog?

• 0.25p

• 1.25p

• p + 0.25

• p + 1.25

The price of a certain item is P dollars. The sales tax on the item is 7%. Which expression could represent the total cost of the item, in dollars, after the tax has been applied?

• 0.07P

• 1.7P

• P + 0.07P

• 1 + 0.07P

Write an expression that represents the situation below. There are multiple answers.

A telephone cost $250. The sales tax is 7.5%. What was the cost of the telephone including sales tax?

• 250(1.075)

• 250(1.75)

• 250(0.75)

• 250 + 250(0.075)

• 250 + 250(0.75)