Answer:
The system has two solution
Step-by-step explanation:
we have
----> equation A
----> equation B
Solve the system of equations by graphing
Remember that
The solution of the system of equations is the intersection point both graphs
There are two point of intersection between the two graphs
see the attached figure
therefore
The system has two solution
Answer:

Step-by-step explanation:
From the question we are told that:
Car worth 
Car Loan
Bank account 
Savings account 
Credit card
Generally Net worth is the value of the assets a person or corporation owns, minus the liabilities they owe.
Therefore


Answer:
9
Step-by-step explanation:
Let's say Mark is M and his brother is B.
M+5=B
M+B=23
Now we can solve using subsitution.
M+M+5=23
(Subtract 5 from both sides)
2M=18
M=9
Hope this helped!
For the first one it would be C.
Answer:Scientific Notation:9.8421*10^-4
Step-by-step explanation: