The amount, A mg, of caffeine in the body t hours after drinking a cup of coffee can be approximated by A = f(t) = 90e-0.17t (a) Find f'(t) f'(t)= (b) Find f(2) and f'(2) and give units. NOTE: Round your answers to two decimal places. f(2)= f'(2) hours mg/hour The demand curve for a product is given by q=f(p)=3000 e-0.23p where q is the quantity sold and p is the price of the product, in dollars. Find (2) and f' (2). Explain in economic terms what information each of these answers gives you. Round your answers to the nearest integer. f(2) = i f' (2) i