I need help with this please

Write the equation below the represents the line passing through the point (-3, -1) negative one with a slope of 4

What is the volume of the sphere shown below with a radius of 3?

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?