The half-life of a radioactive kind of indium is 3 days. How much will be left after 6 days, if you start with 88[..]

Marcus and Tony work for​ Lombardo's Pipe and Concrete. Mr. Lombardo is preparing an estimate for a customer. He[..]

Adult tickets for a concert cost $16.00, and student tickets cost $12.00. If twice as many student tickets as adult[..]

A piggy bank contains 39 coins, all in nickels and dimes. The coins have a value of $3.40. How many of each type of[..]

You borrow $350 to buy a bicycle. You agree to pay $100 the first week, then $25 each week until the balance is paid[..]

divide 71 into two parts such that one part exceeds the other by 8. what are the two numbers?

The three numbers of the combination for a lock are consecutive integers, and their sum is 81. Find the combination.

Sarah runs a day care center. Of the last 18 children to enroll at the day care center, 9 of them have been[..]

Charlie wants to make a one-time investment in an account that earns 4% interesting compounded monthly. To earn[..]

A woman invests $31,000, part at 8% and the rest at 9 1/2% annual interest. If the 9 1/2% investment provides[..]