Differentiate at x=1 f(x) = (x]+2)+ O 324 O 108 O 12 O None of the above Differentiate at x=1 f(x) = 2Vx-3Vx O 0.5 O 2 O o O None of the aboveDifferentiate at x=1 f(x) = X 1 +X O 0.5 O 0.25 O 0 O None of the aboveWhen the price is $2.00 each, 6000 fruit bars will be sold. If the price of a fruit bar is raised by 2.00, sales will drop by 500 fruit bars. a) Determine the demand, or price, function. b) Determine the marginal revenue from the sale of 2700 bars