In the scale used on a blueprint 1/4 inch represent 3 feet on the blueprint what is the length of the room with an excellent of 24

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

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?