A
I hope you get it right, you have a god day!!!
Volume of the shape
= 4ft * 4ft * 15ft
= 240ft³
The answer would be
x = 160/147
or
x = 1 and 13/147
51.25 per month which is $615 per year
They save 5 per month if they pay full year
(51.25-5)= 46.25 per month is $555
so it costs $555 if they pay all at once.
