The answer to you question is B
Answer:
Option C. 
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
The intersection point is (1,3)
see the attached figure
therefore
The solution of the system of equations is

Find the difference

Answer:
x=2 and y=1
Step-by-step explanation:
Add the two equations to remove "y" and solve for x:
4x+8y=16
6x-8y=4
________
10x=20
x=2
Plug x=2 into one of the original equations to get the value of "y":
4x+8y=16
4(2)+8y=16
8+8y=16
8y=8
y=1
Therefore, x=2 and y=1
Answer:
9.7*10^9 or 9,700,000,000
Step-by-step explanation:
To find the answer, multiply 9.7 * 10^6 by 1000 times becasue 1kg = 1000g, we got:
9.7 * 10^6 * 1000 = 9.7*10^9 or 9,700,000,000
Hope this help you :3