M(t) = 1 + t2 and V(t) = 1 + 2t.
Suppose that the mass M(t) of an insect (in grams) and the volume V(t) (in cm3) are known functions of time (in days).
a. Find the density p(t) as a function of time.
b. Find the derivative of the density.
c. At what times is the density increasing?
d. Sketch a graph of the density over the first 5 days.