Answer:
![\boxed{d.\:\:\:9(5x+4)(5x-4)}](https://tex.z-dn.net/?f=%5Cboxed%7Bd.%5C%3A%5C%3A%5C%3A9%285x%2B4%29%285x-4%29%7D)
Step-by-step explanation:
The given expression is
![225x^2-144](https://tex.z-dn.net/?f=225x%5E2-144)
We rewrite to obtain;
![=(15x)^2-12^2](https://tex.z-dn.net/?f=%3D%2815x%29%5E2-12%5E2)
Recall that;
![a^2-b^2=(a+b)(a-b)](https://tex.z-dn.net/?f=a%5E2-b%5E2%3D%28a%2Bb%29%28a-b%29)
We apply the difference of two squares formula to obtain;
![=(15x+12)(15x-12)](https://tex.z-dn.net/?f=%3D%2815x%2B12%29%2815x-12%29)
We factor further to obtain;
![=3(5x+4)\times3(5x-4)](https://tex.z-dn.net/?f=%3D3%285x%2B4%29%5Ctimes3%285x-4%29)
This will give us;
![=9(5x+4)(5x-4)](https://tex.z-dn.net/?f=%3D9%285x%2B4%29%285x-4%29)
This kind of question is a "number is what percent of number" problem.
To solve this, divide the first number (22.5) by the second number (90) and multiply by 100.
22.5 / 90 = 0.25
0.25 • 100 = 25
So 22.5 is 25% of 90.
You can check this by doing 0.25, or just 25%, times 90.
0.25 • 90 = 22.5
This clarifies that 25% is the correct answer.
Answer:
7.3%??? I think that's it srry if me wrong
Step-by-step explanation:
25$ intrest paid... mark brainliest if help