Respuesta :

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:

[tex]\frac{150 * 30}{100} = 45[/tex]

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

[tex]150 - 45 = 105[/tex]