Write as a percent: 0.12

Write as a percent: 0.8

Write as a percent: 0.0039

Write as a percent:  $\frac{3}{10}$  
Round to the nearest tenth of a percent, if necessary.

Write as a percent:  $\frac{5}{16}$  
Round to the nearest tenth of a percent, if necessary.

The Pattersons spent $47.89 for a meal at a restaurant. About how much should they leave for a 15% tip?

Find the percent of change. Round your answer to the nearest tenth, if necessary. 30 is increased to 45.

Find the percent of change. Round your answer to the nearest tenth, if necessary. 115 is decreased to 46.

Find the percent of change. Round your answer to the nearest tenth, if necessary. 116 is increased to 145.

Find the percent of change. Round your answer to the nearest tenth, if necessary. 129 is decreased to 32.

A community theater sold 8,500 tickets to performances during its first year. by its tenth year, ticket sales had increased by 34%. How many tickets did the theater sell during its tenth year?

Find the commission to the nearest cent.

Total sales: $13,600

commission rate: 2.75%

Find the sales tax to the nearest cent.

total sales: $135.50

sales tax rate: 8.25%

Ms. Tan earns $350 per week plus an 8% commission on her shoe sales. She sold $560 last week. What was her total pay for the week?

Dena borrowed $7500 to buy a used car. The credit union charged 9% simple interest per year. She paid $2025 interest. For what period of time did she borrow the money?

At Thrift Bank, if you keep $675 in a savings account for 12 years, your money will earn $486 in interest. What annual simple interest rate does the bank offer?

Leroy borrowed $8250 to be repaid after 3 years at an annual simple interest rate of 7.25%. How much interest will be due after 3 years?

Leroy borrowed $8250 to be repaid after 3 years at an annual simple interest rate of 7.25%. How much will Leroy have to repay?

Martha makes stretchy beaded purses and sells them to Bangles 'n' Beads for $7 each. Bangles 'n' Beads makes a profit of 28% on each purse. Find the retail price of the purses.

In  $I=\Pr t$  , what does the  $I$  mean?

In  $I=\Pr t$  , what does the  $P$  mean?

In  $I=\Pr t$  , what does the  $r$  mean?

In  $I=\Pr t$  , what does the  $t$  mean?