A-Maths (20 Points) Plz~!!

1) The net profit P(x) in thousand dollars dollars per day of a boutique is
governed by P(x) = - x - 25 +20e^(0.03x) for 0 ≤ x ≤ 100, where x
(in thousands) is the number of customers of the boutique on one day.

a) If no customers visits the boutique on a day , find the loss of the
boutique on that day.

b) Determine the number of customers of the boutique on a day so that
the greatest daily profit is attained.