Let the base of a solid be the first quadrant region bounded by y=1-((x^2)/4), the x- axis and the y-axis. Suppose that cross sections perpendicular to the x-axis are squares. Find the volume of the solid.

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years