If the demand equation for a certain product is given by the price p, in dollars, according to p = 600/cubert(x) + x, for x > 0, find the marginal revenue when 1000 units are demanded. [Do not include a dollar sign in your final answer] (1 point)
Calculate lim_{x
ightarrow 6} (336 - 56x)/(x^2 - 4x - 12) = ? (1 point)
If the cost of a certain product is given by C(x) = (1300 + 4x)/10 find the marginal average cost function and use it to compute the marginal average cost of production when 5 items are produced. Give answer rounded to two decimal places. [Do not include a dollar sign in your answer] (1 point)