Question 991011
Solve S = c(h + r)for h.
divide both sides by c and write it as:
 h + r = {{{S/c}}}
Subtract r from both sides
h = {{{S/c}}} - r
"
evaluate the resulting expression to find h when S = 72(pie)in.(squared), c = 6(pie)inches, and r = 3 inches
:
h = {{{(72*pi)/(6*pi)}}} - 3
Cancels to 
h = 12 - 3
h = 9 inches