ACME Exploding Faucets' income flows at the rate f ( t ) = 500 + 40t

(a) Find ACME's total money flow over the interval from t = 0 years to t = 20 years.

(b) Find the present value of ACME's money flow over the same interval.

(c) Find the accumulated amount of ACME's money flow over the same interval.

(d) Find the present value of ACME's money flow, assuming that the money flows forever.

plz answer a b c d not hand writing plz ASAP