Percent Proportion and Simple Interest

When Loofa was born, her parents put $8,000 into a college fund account that earned 9% simple interest. Find the amount of interest earned after 18 years.

• $720

• $20,960

• $1,080

• $12,960

How much interest would you earn if you deposited $575 for 3 months at 2.88% simple interest?

• $4.14

• $4,968

• About $400

• $1,725

The simple interest formula is I=Prt. The P represents the principal. The principal is ___________________.

• the amount of money

• the percent interest for his year

• the rate

• the percent proportion

What does the "I" in the interest formula stand for?

• It

• Interest

• the Headless Iron Man

• Ignoramus

Alex borrowed $4,000 for 5 years at 6% simple interest rate to pay for his band equipment. How much interest is that?

• $800

• $1,000

• $1,200

• $1,500

Jerry borrowed $4,000 for 5 years at 6% simple interest rate. What will the value of Jerry's account be after 5 years?

• $520,000

• $120,000

• $5,200

• $1,200

Penny puts $300 in a bank account earning 4% interest. How much will he earn in interest in 1 year?

• 4

• 8

• 12

• 16

Find the simple interest earned for principal of $2,000 at and 8% rate for 5 years.

• $160

• $800

• $80,000

• $16

Find the simple interest paid on a loan of $750 with an 18% rate over 2 years.

• $135

• $13,500

• $270

• $27,000

Find the simple interest paid on a loan of $4,750 at a rate of 19.5% for 30 months.

• $5

• $2315.63

• $27,787.50

• $926.25