The normal healing of wounds can be modeled by an exponential function. If A₀ represents the original area of the wound and if A equals the area of the wound, then the function

A(n) = A₀e^-0.35n

describes the area of a wound after n days following an injury when no infection is present to retard the healing. Suppose that a wound initially had an area of 100 square millimeters.

(a) If healing is taking place, how large will the area of the wound be after 3 days?

(b) How large will it be after 10 days?