Grade 7 Unlimited Math Practice: Algebraic Expressions with Percents

The price of a stock was originally $x. If the stock increased by 5%, which expression can be used to find the price now?

$(1.05x)

$(0.05x)

$(x + 0.05)

$(x + 1.05)

The population of pigeons in a park increased by 6%. If the original population of pigeons was x. Which expression can be used to find the population now?

1.06x

x + 0.06

0.06x

x + 1.06

The population of ducks in a park increased by 60%. If the original population of ducks was x. Which expression can be used to find the population now?

0.6x

x + 0.6

1.6x

160x

The price of a gold bullion was originally $x. If the gold bullion increased by 22%, which expression can be used to find the price now?

$(122x)

$(0.22x)

$(x + 0.22)

$(1.22x)

The price of a condominum was originally $x. If the condominum increased by 42%, which expression can be used to find the price now?

$(x + 0.42)

$(x + 42)

$(x + 1.42)

$(1.42x)