Grade 7 Unlimited Math Practice: Algebraic Expressions with Percents

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The population of squirrels in a park increased by 89%. If the original population of squirrels was x. Which expression can be used to find the population now?

x + 89

x + 0.89

x + 1.89

1.89x

An item is on sale for 48% off. If the original price of the item was x. Which expression can be used to find the sale price?

$(0.52x)

$(0.48x)

$(x - 0.48)

$(x - 52)

An item is on sale for 44% off. If the original price of the item was x. Which expression can be used to find the sale price?

$(x - 0.44)

$(0.56x)

$(0.44x)

$(56x)

The population of squirrels in a park increased by 25%. If the original population of squirrels was x. Which expression can be used to find the population now?

x + 25

x + 0.25

1.25x

x + 1.25

The price of a gallon of gas was originally $x. If the gallon of gas increased by 47%, which expression can be used to find the price now?

$(x + 1.47)

$(0.47x)

$(x + 0.47)

$(1.47x)

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