The john deere company has found that the revenue from sales of heavy-duty tractors is a function of the unit price p that it charges. the revenue r is given by the following function.

r(p)= (-1/2)p^2+1520p

what unit price p should be charged to maximize revenue? give your answer correct to the nearest dollar.

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?