Sam sounds received a $290 discount loan to purchase a stereo. the loan was offered at 16% for 90 days. find the interest in dollars and the proceeds for the following problem. the interest is 10.60,11.60,12.60 the proceeds are 278.40, 278.40, 279.40

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?