Grade 7 | Unit 4 | Lesson 7: One Hundred Percent | Practice Problems

A bakery used 25% more butter this month than last month. If the bakery used 240 kilograms of butter last month, how much did it use this month?

• 290 kilograms

• 300 kilograms

• 310 kilograms

• 320 kilograms

• 330 kilograms

Last week, the price of oranges at the farmer's market was $1.75 per pound. This week, the price has decreased by 20%. What is the price of oranges this week?

• $1.40 per pound

• $1.50 per pound

• $1.60 per pound

• $1.70 per pound

• $1.80 per pound

Noah thinks the answers to these two questions will be the same. Do you agree with him? Explain your reasoning. This year, a herd of bison had a 10% increase in population. If there were 550 bison in the herd last year, how many are in the herd this year?

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Noah thinks the answers to these two questions will be the same. Do you agree with him? Explain your reasoning. This year, another herd of bison had a 10% decrease in population. If there are 550 bison in the herd this year, how many bison were there last year?

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Elena walked 12 miles. Then she walked 0.25 of that distance. How far did she walk all together? Select all that apply.

A circle’s circumference is 600 m. What is a good approximation of the circle’s area?

• 300 m2

• 3,000 m2

• 30,000 m2

• 300,000 m2

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