Carrie and Omar are comparing the international calling plans on their cell phones. On her plan, Carrie pays $1 just to place a call and $2 for each minute. When Omar makes an international call, he pays $4 to place the call and $1 for each minute. A call of a certain duration would cost exactly the same under both plans. What is the duration? What is the cost?

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?