Find $f$ such that $f^{\text{'}}(x)=\frac{8}{\sqrt[\phantom{2}]{x}},f(4)=45$

$f(x)=$

A company finds that the rate at which the quantity of a product that consumers demand changes with respect to price is given by the marginal dimand function

$D^{\text{'}}(x)=-\frac{3000}{x^2}$

where x is the price per unit, in dollars. Find the demand function if it is known that $1005$ units of the product are demanded by consumers when the price is $$3$ per unit

$D(x)=D$

A company finds that the rate at which the quantity of a product that consumers demand changes with respect to price is given by the marginal dimand function

$D^{\text{'}}(x)=-\frac{3000}{x^2}$

where x is the price per unit, in dollars. Find the demand function if it is known that $1005$ units of the product are demanded by consumers when the price is $$3$ per unit

$D(x)=D$