Find an explicit formula for the arithmetic sequence

81,54,27,0, ...

Find the rate of Change y=2x+9

Aaron has an unpaid balance of $637.24 on his credit card statement at the beginning of March. He made a payment of $25.00 during the month, and made purchases of $375.44.

Sarah has a credit card balance of $9,450 with an APR of 17%. With her current budgeted payment, Sarah will be able to pay off this debt in 36 months. But Sarah's best friend just invited her to spend two months in Europe with her in 9 months.

A local hamburger shop sold a combined total of 564 hamburgers and cheeseburgers on Monday. There were more cheeseburgers sold than hamburgers. How many hamburgers were sold on Monday?

An international company has 25,600 employees in one country. If this represents 19.3% of the company's employees, how many employees does it have in total? Round your answer to the nearest whole number

Bonita brought 3 bags of apples and 2 pounds of grapes to the picnic. Each bag of apples weighed 4 pounds. How many pounds of apples and grapes did Bonita bring to the picnic?

6% of what amount of money is $9?

I am a number. When you divide me by 2, and divide by 2, aging the result is 4. What number am i?

It takes 72,000 gallons of water to fill 12 above-ground swimming pools. Each pool holds the same amount of water. How many gallons of water will fill each swimming pool?

What are the terms in the expression 2x-4y+8