Answer :
After a 20% discount, you're left with 80% of the original price.
(0.80) x (the original price) = $56
Divide each side by 0.80 :
the original price = $56 / 0.8 = $70
(0.80) x (the original price) = $56
Divide each side by 0.80 :
the original price = $56 / 0.8 = $70