Answer:
explination...
Explanation:
so from how i’m understanding it, it would be 12(90) + 20(121).
so 12 x 90 is 1080. so that’s already a good amt, but then 20 x 121 is 2420. now if we add those together,
2420
+1080
-————
3500
so instead of there being more money than she spent, she actually gets the same amount back. so just rearange what’s you out to make sense in a way that matches the problem and you should be good (that was saying it nicely sorry if that seemed rude haha)