Can you please answer the four boxes with solving them too and ill give you free points and brainliest just don't put the wrong answer im running out of time please pleeaasssee help i beg youuu. I already put the answers in the box but i know they'r not right so please do them for me.

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