Suppose that a wholesaler expects that his monthly revenue, in dollars, for an electronic game will be R(x) = 140x − 0.1

[answerhappygod]

Suppose that a wholesaler expects that his monthly revenue, in
dollars, for an electronic game will be
R(x)
= 140x − 0.15x2,
0 ≤ x ≤ 800
where x is the number of units sold. Find his
marginal revenue and interpret it when the quantity sold is the
following.
(a) x = 400
$_____?
(b) x = 700

$____?