Ahmad drove 638 miles in 11 hours. at the same rate, how long would it take him to drive 522 miles?

What is the quotient of -3/8and-1/3?

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles