NEED HELP PLSSS :)

A health institution receives a net cash flow of US $ 100,000 each year from a project with an investment amount of US $ 1,000,000.

a) find the period during which the investment will repay itself according to the repayment period method.

b) The Health Authority has determined the longest acceptable repayment period to be 7 years.

Whether the investment is acceptable by specifying your decision-making criteria? evaluate.