Please have all answered .

3rd question is r(t) = t cubed +2

A triangle with constant base b and height h is changing with time where h(t) = 3t + 1. What is the rate of change of the area of the triangle when t = 1?What function should be used to minimize the distance between y = /x + 3 and th oint (2, 0)?A sphere is expanding with time. Assume that the volume of the sphere is v = 4mm r(t) = t2 + 2. What is the formula for the rate of change of the volume of the balloon, with respect to time?What function should be used to maximize the volume of a closed box whose surface area is equal to 16 where the box has a square bottom?A square with side x, is changing with time where x(t) =3t + 1. What is the formul for the rate of change of the area of the square?sphere is expanding with time. Assume that the volume of the sphere is v = 4m 3 t) = +3 + 2. What is the formula for the rate of change of the volume of the ballo with respect to time?e has enough paint to paint an area 16 square inches. What are the dir e largest open box (largest volume) that she can paint? Assume that the ox is square and there is no top