An 8ft length of 4 inch wide crown molding costs $15. How much will it cost to buy 24 ft of crown molding?

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Bernice paid $162 in interest on a loan of $1800 borrowed at 6%. how long did it take her to pay the loan off?