Kenny bought a few 2-litre bottles of detergent. sue bought a few 3-litre bottles of detergent. the average amount of detergent both of them had was 5y litres. kenny and sue bought the same number of bottles of detergent. how many bottles of detergent did each of them buy?

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