Answer:
C
Explanation:
the answer would be C, or y = 0.125x + 625 because in the problem, it says that the store would require an upfront payment of $25 PLUS $50 a month, then 12.5% interest at the end of the year, then it asks what the equation would be after 12 months. SO we know that is a year (since there are 12 months in a year) so we would multiply that by number by the $50 we would have to pay a month which would look like this: 12 months x $50 a month = $600. then, we would add the initial $25 dollars, which would give us a total of $625 which we'd add to the equation. next, if we look at 12.5% and then at our answer choices, we can see that they converted the percent to a decimal. 12.5% is equivalent to 0.125, therefore our final answer is C!
i hope this helps :D