Suppose the length of the base b of a rectangle is increased by 10 percent and the length of the altitude h is increased by 30 percent. Write an expression, in terms of b, that represents the length of the base of the rectangle after the 10% increase. Write an expression, in terms of h, that represents the length of the altitude of the rectangle after the 30% increase. Write an expression, in terms of b and h, that represents the area of the rectangle after both the lengths of the base and altitude are increased. Increasing a rectangle's base by 10% and altitude by 30% will increase the area by what percentage? %