Answer:

Step-by-step explanation:
![8 \log_5 x^5\\\\=8(5) \log_5 x~~~~~~~~~~~~~~~~~~~~;[\log_b m^n = n \log_b m]\\\\=40 \log_5 x](https://tex.z-dn.net/?f=8%20%5Clog_5%20x%5E5%5C%5C%5C%5C%3D8%285%29%20%5Clog_5%20x~~~~~~~~~~~~~~~~~~~~%3B%5B%5Clog_b%20m%5En%20%3D%20n%20%5Clog_b%20m%5D%5C%5C%5C%5C%3D40%20%5Clog_5%20x)
Answer: -97
Step-by-step explanation:
Answer:
He still owes $105
Step-by-step explanation:
First, we have to find how much money Marco had paid back.
We are going to find the percentage of the number:

Then, doing a simple mathematical subtraction we can find how much money he still owes to his brother:

Answer:
i dont know for sure but I think it would be 0.07