Grade 7 Unlimited Math Practice: Algebraic Expressions with Percents

An item is on sale for 83% off. If the original price of the item was x. Which expression can be used to find the sale price?

$(x - 17)

$(0.17x)

$(x - 0.83)

$(x - 0.17)

An item is on sale for 81% off. If the original price of the item was x. Which expression can be used to find the sale price?

$(0.81x)

$(0.19x)

$(x - 0.81)

$(19x)

An item is on sale for 79% off. If the original price of the item was x. Which expression can be used to find the sale price?

$(0.79x)

$(0.21x)

$(x - 21)

$(x - 0.79)

The price of a condominum was originally $x. If the condominum increased by 52%, which expression can be used to find the price now?

$(x + 0.52)

$(x + 52)

$(1.52x)

$(x + 1.52)

The population of gophers in a park increased by 64%. If the original population of gophers was x. Which expression can be used to find the population now?

1.64x

0.64x

x + 1.64

x + 0.64