Answer:
A.
![((1)/(4) mile )/(22.5 seconds) = 40 mph](https://img.qammunity.org/2021/formulas/mathematics/high-school/nkprkuv26njvknkdbp9ata288cpn05x35r.png)
Explanation:
Miles per hour can be written like this:
![MPH=(miles)/(hour)](https://img.qammunity.org/2021/formulas/mathematics/high-school/ba0we1l25cq22cxoig61xwdfkhs5pjsl3w.png)
So, the correct way to write this question would be:
![((1)/(4) mile )/(22.5 seconds) = 40 mph](https://img.qammunity.org/2021/formulas/mathematics/high-school/nkprkuv26njvknkdbp9ata288cpn05x35r.png)
If you multiply 22.5 by 4 you get 90, which is 1.5 minutes.
So, a hyena can run a mile in 1.5 minutes.
Divide 60 by 1.5 and you find that the hyena runs 40 miles in 1 hour.
It can't be 90mph. The hyena can't run 60mph because it doesn't run a mile a minute.
Therefore, your answer is A.
I hope this helps!!
- Kay :)