What is the slope of the line passing through (-2,5)and(3,-4)

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

What is the value of the expression below? (81^2)^1/8

100 points, hi, i’m not sure how to get the equation from the graph and table.