Please help me solve this. Please explain. Thank You!

[1 point} The total prot (in dollars] from the sale of it charcoal grills ls Pm) = 503: [1.33:2 225 [A] Flnd the average proflt per grill it 40 grills are produced. Ave. profit = 32.3?5 Find the marginal average prot at a production level of 40 grills. {B} Marginal average prot = I I Use the results from parts (A) and [B] to estimate the average profit per grill If 41 grille are produced. [C] Estimated average prot = I l