The traffic flow rate (cars per hour) across an intersection is r(t)=300+ 800-120, where t is in hours, and t=0 is 6am. How many cars pass through the intersection between 6 am and 7 am? cars Question 6 < > 11 A company's marginal cost function is where x is the number of units. Find the total cost of the first 49 units (of increasing production from x=0 to x=49) Total cost: $ Question 7 For the given cost function C(2) 78400+400x + x find: > a) The cost at the production level 1450 b) The average cost at the production level 1450 c) The marginal cost at the production level 1450 d) The production level that will minimize the average cost e) The minimal average cost Question 8 > Given the demand function D(p)=300-4p, Find the Elasticity of Demand at a price of $47 At this price, we would say the demand is: O Inelastic Elastic Unitary Based on this, to increase revenue we should: O Keep Prices Unchanged Raise Prices O Lower Prices