48 * 5 = 240
240 / 32 = 7.5 gallons a week ( $28.42)
Right triangle = Pythagoras theorem.
a^2+b^2=c^2
there's already c and b so
10^2-8^2=a^2
100-64= 36
a^2=36
square root both sides
to get 6.
Answer:
In order for the appropriate answer to be given, you need to include the original measurements as well.
Zeros are:



Looks like only

and

are offered as answers, though.