match each division problem with the problem that shows multiplication by the reciprocal 3/4 / 6 1/4 / 1/7 6 / 3/4 4/5 / 3/2 3/4 * 1/6 1/4 * 7 4/5 * 2/3 6/1 * 4/3 plz hurry

For each proportion find the unknown number x 1/5/8=×/15

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle. he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field