Answer:
Carlos expect to make $540 on an investments of $6000.
Explanation:
Given:
Carlos thinks that he should make $9 for every $100 he invests.
Now, to get the amount Carlos expect to make on an investments of $6000.
Let the amount he expect to make on an investments of $6000 be

As, Carlos thinks that he should make nine dollars for every $100 he invests.
So, $100 is equivalent to $9.
Thus, $6000 is equivalent to

Now, to get the amount using cross multiplication method:

By cross multiplying we get:

Dividing both sides by 100 we get:

Therefore, Carlos expect to make $540 on an investments of $6000.