Answer:
x+7y = -77
Step-by-step explanation:
multiply both sides by 7 to get rid of denominator
7y = -x-77
now move x term to other side
x+7y = -77
Answer:
12.6
Step-by-step explanation:
4.2×3=12.6
I hope this answer can help you
Answer:

Step-by-step explanation:
f(x)+g(x)

combine like terms --

Use this formula:
K = K_0 * (1+r)^n
Insert and solve for n:
12600 = 6000 * (1+0.065)^n
n = 11.78
So about 12 quarters.
Hope that helped.