Answer:
For the 1st one the answer is y = 5x + 150 and the second one is equal to y = -25x + 200.
Explanation:
The first one would not be 30 because you're not finding the x value, just the equation. The second one you start with 200 hundred so you're adding 200 and since you're spending money every month it means subtracting. And the only equation that makes sense is y = -25x + 200