For the given cost function

$C(x)=25600600x{x}^2$ find:

a$)$ The cost at the production level $1500$

b$)$ The average cost at the production level $1500$

c$)$ The marginal cost at the production level $1500$

d$)$ The production level that will minimize the average cost $q,$

e$)$ The minimal average cost $$