Rebecca works at a flea market. on Wednesday she made a profit of $40 on Thursday a loss of 15 dollars on Friday a loss of 60 dollars and on saturday a profit of 100 dollars. a) represent this information in an expression using appropriate integers

b) solve your expression to find rebecca's total profit or loss over the 4 days​

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?