At shop A, the usual price of a mobile phone is $800. At shop B, the usual price of the same type of mobile phone is $780. During a promotion, Shop A offers the mobile phone at a discount of 20 percent and Shop B offers a discount of $120 for it. Madison wants to buy such a mobile phone.
(A) How much was the discount given by Shop A for the mobile phone?
(B)Which shop should Madison buy his mobile phone?
(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).