Teachers at price middle school are planning a birthday party for the principal. planners estimated that 42 slices of cake would be needed. in fact, only 30 slices of cake were eaten. what was the percent error in the estimate of how much cake was eaten?

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?