Given this productivity function: Q=KL

-) Find the marginal cost of production in the short-run

-)Whats the average total cost function

K=144

r= 8

L=quantity of work

w= 2

I found the total cost function and got this: TC = Q/72 + 1152

VC= Q/72

FC= 1152

for the marginal cost I did the derivate of VC/Q and got: Q/36

i dont know if i can find numeric results or how to do it

for the average total cost i tried CT/Q and got a weird fraction which I dont know if its okay haha thanks you so much if someone can help me