Answer:
There is no solution to this system.
Step-by-step explanation:
The left side of the first equation is 3 times the left side of the second one.
If we multiply the whole of the second equation by 3 we get:
3x - 6y = -16.
As the first equation is 3x - 6y = -12 we see that there is no solution to this system. 3x - 6y can't be equal to -12 and -16.
Put the whole problem, we need more information
Answer:
3
Step-by-step explanation:
3/1
Answer:
-5
Step-by-step explanation:
"r(s(-2))" is a composition of functions. To evaluate this, we need to plug in "-2" into the function S(x) and then take that value and further plug it into R(x).
First, s(-2):

Now, we take the value (-4) and put it into R(x) to get our final answer:

Hence, r(s(-2)) = -5
So the 3 investments were 72,000, 16,000, and 20,000