Answer
a. $R=2.50(x)$
b. 7500 dollars
c. $P=(2.50-0.45)x-7000$
d. 2225 dollars
e. 3414 dollars
Work Step by Step
a. R=revenue, x= number of snow cones sold
$R=2.50(x)$
b. x=3000
$R=2.50(3000)$
$R=7500$
c. P=profit, x=number of snow cones sold
$P=(2.50-0.45)x-7000$
d. x=4500
$P=2.05(4500)-7000$
$P=9225-7000$
$P=2225$
e. P=0
$0=2.05(x)-7000$
$0+7000=2.05(x)$
$7000=2.05(x)$
$7000\div2.05=x$
$x=3414$