Please help, slopes and graph

equation = ?

ordered pair = (3,4)

slope' (m) = ?

y-intercept = 3

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

If you could answer these your a life saver

Is there an x intercept in the equation 60*1.15^x