A broker wants to sell a customer an investment costing $$100$ with an expected payoff in one year of $$109\mathrm{.}2.$ The customer indicates that a $9\mathrm{.}2$ percent return is not very attractive. The broker responds by suggesting the customer borrow $$90$ for one year at $7\mathrm{.}2$ percent interest to help pay for the investment.a$.$ What is the customer$$s expected return if she borrows the money?Note: Round your answer to $1$ decimal place.