Topic 3 Review; 7th grade

Jocelyn estimates that a piece of wood measures 5.5 cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn's estimate?

• 2.14%

• 2.18%

• 12%

• 46.83%

In Game 1, Emerson struck out 30 times in 90 times at bat. In Game 2, he struck out 40 times in 120 times at bat. In Game 3, Emerson struck out 42 times in 140 times at bat.

What percentage of times at bat did Emerson actually hit the ball?

April took out a $600 loan from the bank. At the end of 5 years, she pays back the principal, plus $60 simple interest. What was the annual interest rate?

Michael and Imani go out to eat for lunch.

If their food and beverages cost $25.30 and there is an 8% meals tax, how much is the bill? Write your answer to the nearest cent.

Eric found that about 62% of 80 classmates at school like hip-hop music. However, 70% of his 60 relatives like hip-hop. Do more classmates or relatives like hip-hop?

• Classmates

• Relatives

• It is the same number of classmates and relatives that like hip-hop music

On the first visit to the veterinarian's office, Cora's kitten weighed 550 grams. On the second visit, the kitten had gained 350 grams. On the third visit, the kitten had gained another 300 grams. What is the percent increase since the first visit in the kitten's weight rounded to the nearest percent

Ethan buys a video game on sale. If the video game usually costs $39.99, and it was on sale, for 20% off, how much did Ethan pay? Round to the nearest cent.

• $7.99

• $14.99

• $31.99

• $39.74

Dagne measures and finds that she can do a vertical jump that is 27.5% of her height. If Dagne can jump 13.2 inches how tall is she?

Jackson hikes 220.2 meters up a mountain. If he is 60% of the way up how tall is the mountain?

• 132.12 meters

• 280.2 meters

• 367 meters

• 13,200 meters

Elsa took out a 2 year loan to buy a car at a 6% simple interest rate. If she has to pay $264 in interest, how much principal did she borrow?