Answer:
![\boxed{\blue{\sf He\ will \ owe \ \$ 8540 .}}](https://img.qammunity.org/2022/formulas/mathematics/college/fyj2cmxk73274wf5fgvl9ctemkysx3rkvm.png)
Explanation:
According to Question , Yoshua borrowed $8,000 from his credit union over 9 months. He pays a simple interest of 9%. And we are required to find the total amount of money he will owe the bank .
So , we know the formula of Simple Interest as ,
As ,per the data in Question ,
- Amount = $ 8,000
- Time = 9 months
- Rate of Interst = 9% .
![\implies SI = =(P* R* T)/(100) \\\\\implies SI =(\$ 8000 * (9)/(12)* 9 )/(100) \\\\\implies SI = (\$ 8000 * 9 * 9 )/(12* 100 )\\\\\boxed{\pink{\bf \implies Simple\: Interst = \$ 540 }}](https://img.qammunity.org/2022/formulas/mathematics/college/5r4z9x2xp3fg6sbx84g1pgpkkrfpjhchfh.png)
Hence the Simple Interest is $ 540.
And , we know that Amount is ,
![\implies Amount = Principal + SI \\\\ \implies Amount = \$ 8000 + \$ 540 \\\\\boxed{\orange{\bf \implies Amount= \$ 8540 }}](https://img.qammunity.org/2022/formulas/mathematics/college/ffczwfewxoow9fyu4i0s72v2hoocwh2vc1.png)
Hence he will owe $ 85400.