jenny has 7/8 of a tank of gas. she estimates she will use 2/3 of the tank to get home. what fraction of the tank of gas she use?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

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?