Question

CAN SOMEONE HELP PLEASE?✨

Answer 1

Explanation:

is given above in the pdf

Answer 2

`\sf{The\;Marginal\;Revenue\;} $MR(8) = \boxed{288} \;dollars per unit$}`

Explanation:

What is Marginal Revenue?
Marginal Revenue is the revenue that is gained from the sale of an additional unit. It is the revenue that a company can generate for each additional unit sold

Given the equation for revenue function

`R(q) = -7q^2+400q`

the Marginal Revenue
`MR(q)` is the first derivative of this function wrt
`q`

`MR(q) = (d)/(dq)\left(R(q)\right)\\= (d)/(dq)(-7q^2 + 400q)\\\\= (d)/(dq)(-7q^2) + (d)/(dq)(400q)\\\\= -14q + 400\\\\`

For
`q = 8,` this works out to:

`MR(8) = -14(8) + 400\\\\= -112 + 400\\\\= 288`

And that is the answer