(2a−1/3)÷b/15 when a=−4/5 and b=−2.25

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

In a column proof the right column states your reasons

Write the function for the graph. (1.8) (0,4)