B$)$ Borealis Hardware borrowed $$6,950$ on May $12,2021$ and repaid this loan on

August $28,2022.$ What annual rate of simple interest was charged if the amount

repaid was $$8189\mathrm{.}05?$

C$)$ Marvin is supposed to make the following loan payments: $$910$ today and $$1440$

$16$ months from now. He is unable to make today's payment and calls his bank

to arrange for an alternate payment plan. This new plan would have him pay

$$1250$ in nine months and the balance in one year. Calculate the balance Marvin

would pay one year from now if the interest rate is set at $12\mathrm{.}2\%$ p$.$a$..$ Include a

labelled timeline with your response.