The area of a rectangle is given by the trinomial 10ײ - 31x-14. the length of the rectangle is 5x+2. what is the expression for the width of the field.

Mary works for a company that ships packages and must measure the size of each box that needs to be shipped. mary measures a box and finds the length is 7 inches, the width is 14 inches, and the height is 15 inches. what is the volume of the box? [type your answer as a number.]

I'll give brainliest if you answer right : )

Simplify the expression 10/11(22z) + (a+5) -1