What is the exact area of a circle with a radius of 19m

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.