10. The Price King Auto Mall pays their sales staff by commission. They are paic
a percent of the profit the
dealership makes on each sold car. If the profit is
$900 or less, the commission rate is 18%. If the
profit is greater than $900
and
less than or equal to $1,500, the commission rate is 20% of the profit
. If the
profit is higher than $1,500, the rate is 25% of the profit. If x represents the
profit, express the commission c(x) as a piecewise function.