For neo. Payback period; heartland paper company is considering the purchase of a new high speed cutting machine. Two cutting machine manufacturers have approached heartland with proposals: (1) Toledo tools and (2) Akron industries. Regardless of which vendor heartland chooses the following incremental cash flows are expected to be realized: Incremental cash Incremental Cash Year &n bsp; inflows outflows 1 $26000 $20000 2 &nbs p; 27000 21000 3 &nbs p; 32000 26000 4 &nb sp; 35000 29000 5 &nb sp; 34000 28000 6 &n bsp; 33000 27000 a. If the machine manufactured by Toledo tools cost $27000 what is its expected payback period? b. If the machine manufactured by Akron industries has a payback period of 66 months what is its cost? c. Which of the machines is most attractive based on its respective payback period? Should heartland base its decision entirely on this criterion? Explain your answer