1.) 54.39 - 36.245

how do i solve this problem? ​

Iam being ! sally is a company set up for a show. they start setting up the set on a monday and then keeps setting everything up throughout that next week until everything is ready for the show to begin. the graph below shows sally’s setup time on different days (a) write the equation of the line in slope intercept form, show your work! (b) using the graph, predict how long sally worked to set up the show on the day the show set came, day 0. approximately how much did her set up time for the show set up increase or decrease per day? show your work.