If the length and width of a rectangular solid are increased by 10% and the height is increased by 20%, by what percent is the volume of the solid increased

1foot = 12 inches; 1 yard = 3 feet

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)