1 answer
(click or scroll down)
(A) The discount given by Shop A for the mobile phone is 20% of $800, which is calculated as 20/100 * $800 = $<<20/100*800=160>>160.
(B) To determine which shop Madison should buy his mobile phone, we need to compare the prices after the discounts.
After the discount, the price at Shop A is $800 - $160 = $<<800-160=640>>640.
After the discount, the price at Shop B is $780 - $120 = $<<780-120=660>>660.
Therefore, Madison should buy his mobile phone from Shop A, as the price is lower there ($640 < $660).