The table of values below represents a linear function and shows the amount of money in a tip jar at a dry cleaners since the dry cleaners opened for the day. How much was in the tip jar when the dry cleaners opened? Amount of Money in a Tip Jar at a Dry Cleaners
Number of Hours Since Dry Cleaners Opened
4
5
6
7
8
Amount of Money in Tip Jar ($)
15.50
18.25
21.00
23.75
26.50

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