X= 30
y=18,000(1.04³⁰)=18,000(3.24339751)≈58381
answer: B)58,381
X=3
Just look at where the two lines intercept and see the x value
1920/1900/1910/1940/1930/
Coincident lines are lines that are the same.
In the beginning of both equations we have '4x' and '8x'.
Note that 8 / 4 = 2.
Multiply the rest of the numbers in the first equation by 2.
5y * 2 = 10y
8 * 2 = 16
So our 2nd line will be:
8x + 10y = 16
