19. [-/5 Points] DETAILS MY NOTES Find the area of the region under the graph of f(x) = e-x/4 from x = 8 to x = 32. O e -8(26 - 1) 1 8( 24 - 1) O e8(24 - 1) O 4e-8 (e6 - 1) 498(24 - 1) 20. [-/5 Points] DETAILS MY NOTES If the demand function for math anxiety pills is p = D(x) = -5x + 41 and the corresponding supply function is p = S(x) = 4x + 5, determine the consumer surplus at the market equilibrium point. O 40 0 72 80 0 32 1:12 PM 90.F Mostly sunny ~ 9 0 651) 8/6/2022 O C