Please help, the answer should be in the form of excel equations on how to solve the questions $=$a$5+$b$5($example$)$ and such, it will not help if I just get the answers I need to see how please. Thank you!

"Penn Corp. is analyzing the possible acquisition$$of Teller Company. Both firms have no debt. Penn believes the acquisition$$will increase its total aftertax annual cash flows by $$1\mathrm{.}45$ million indefinitely.$$The current$$market value of Teller is $$31\mathrm{.}5$ million, and that of Penn is $$53$ million.$$The appropriate discount rate for the incremental cash flows is $10$ percent. Penn is$$trying to decide whether it should offer $40$ percent of its stock or $$44\mathrm{.}5$ million in$$cash to Teller$$s shareholders.

a$.$ What is the cash cost of each alternative?

b$.$ What is the NPV of each alternative?"