The 1-variable equation that we need to solve to find how many months it would take to save $10,000 is given when we equal s(x)=10,000.
Hence, the answer is:

Now, to find how many months it would take to save 10,000, we need to solve for m the previous equation. Therefore:

Subtract both sides 600


Then, divide both sides by 50:


Hence, it would take 188 months to save $10,000