Alison, Hector, and Myles had a challenge to see who could run the farthest in a month. Alison ran 21 miles. Hector ran 5 times as many miles as Myles, and Myles ran 2 times as many miles as Alison. How many miles did Hector run?

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. the lengths of the parallel sides of the trapezoid are 14 ft and 24 ft. the height of the trapezoid is 12 ft. what is the area of the stage? enter your answer in the box. ft²

How is this equation completed? i cannot find any examples in the book.

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.