2(x+6) ^2+ 4 = 20
explain step by step please (square root property)

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

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?

Complete the steps to find 4.830 ÷ 5