The consumer expenditure, in dollars, for a commodity is the product of its market price, p$,$ and the number of units demanded, x$.$ Suppose that for a certain commodity, the consumer expenditure is given by

$15,000$p $95$p$2.$

$($a$)$ Factor this in order to find an expression for the number of units demanded. $($Simplify your answer completely.$)$

x $=$

units

$($b$)$ Use $($a$)$ to find the number of units demanded when the market price is $$36.$

x $=$ units