91Ó°ÊÓ

Solve the linear equation$4\left(p-4\right)-\left(p+7\right)=5\left(p-3\right)$.

The sum of three times a number and seven is twenty-five. Find the number.

A rectangular rug has perimeter 240 inches. The length is 12 inches more than twice the width. Find the length and width of the rug.

Converting temperature

Yon was visiting the United States and he saw that the temperature in Seattle one day was $50°$ Fahrenheit. Solve for C in the formula $F=\frac{9}{5}C+32$to find the Celsius temperature.

Jose just removed the children's play set from his back yard to make room for a rectangular garden. He wants to put a fence around the garden to keep the dog out. He has 50-foot roll of fence in his garage that the plans to use. To fit in the backyard, the width of the garden must be 10 feet. how long can he make the other side?

Solve the linear equation$3\left(a-2\right)-\left(a+6\right)=4\left(a-1\right)$.

Find the percent change. (Round to the nearest tenth of a percent.) In $2011$, the IRS increased the deductible mileage cost to $55.5$ cents from $51$ cents.

Vina has $\$4.70$in quarters, dimes and nickels in her purse. She has eight more dimes than quarters and six more nickels than quarters. How many of each coin are in her purse?

Loren lent his brother $\backslash (3000$to help him buy a car. In four years, his brother paid him back the $\backslash )3000$ plus $\$660$ in interest. What was the rate of simple interest

Julie went to the post office and bought both $\backslash (0.41$ stamps and $\backslash )0.26$ postcards. She spent $\$51.40$. The number of stamps was $20$ more than twice the number of postcards. How many of each did she buy?