Evaluate a+4a+4a, plus, 4 when a=7a=7a, equals, 7.

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

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs

Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section