Question 3, Concept Question 2.3 N HW Score: 87.8%, 7.02 of 8 points @ Part 3 of 3 s BT EHO TR Consider the following cost function (C): C=0.3q - 6g +85q +F. The equation for average cost (AC) is: f AC= 0.3q2 - 6g + 85 + [EJ . (Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a superscript can be created with the * character.) The equation for variable cost (VC) is: VC= 0.3q3 = E'>c|2 + 85q . (Properly format your expression using the tools in the palette.) The equation for marginal cost (MC) is: MC=| | (Properly format your expression using the tools in the palette.)