John gave away 8 postage stamps, which was 5% of his collection. How
many stamps did John have to begin with?

Diana is painting statues she has 7/8 of a liter of paint each statue requires 1/20 of a liter of paint how many statues can she paint?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.