What IS the aswer PLZ help

Write the expression 7x^3-28xy^2 as the product of 3 factors

What is the ratio of the length of an object in yards to the length of the same object in miles?

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.