Which of the following statements is TRUE? a. A square is a special type of rectangle.
b. A kite is a special type of rectangle.
c. A rectangle is a special type of rhombus.
d. A trapezoid is a special type of square.

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.