Answer:
A) [tex]m=\frac{350}{25}[/tex]
Step-by-step explanation:
We are trying to find how long it will take Carlos to have $500 TOTAL, so we need to subtract what he already has ($150) to get the value we want to divide by $25 to figure out how many months it will take him to save up the rest. The given answer above is just a simplified way of writing [tex]m=\frac{500-150}{25}[/tex], if that makes more sense.
