HELP : calculating slope between two points.

Find the simple interest earned to the nearest cent for each principal,interest rate,and time 735 7% and two and a half years

Plzzzz i beg u asap ! what is the equation of this graphed line? enter your answer in slope-intercept form in the box.

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain