What is the slope of the line that passes through the points (5,1) and (2,-7) in fraction form

The amount of energy it takes to lift a box might be a function of which of the following

Which equation represents the partial sum of the geometric series?

The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?