Each edge of a cube is increased by 50%. Find the percentage Increase In the surface area.

Alveoli increase surface area by-

If the kinetic energy of a body increases by 125% the percentage increase in its momentum is

If the period of oscillation of a simple pendulum is increased by a% then the percentage increase in its length is

The volume of a cube is increasing at the rate of 8cm^3//sec. How fast is the surface area increasing when the length of an edge is 12 cm ?

If z varies directly as x and inversely as y. Find the percentage Increase in z due to an increase of 12% in x and a decrease of 20% in y.