Please help and show work please and thank you!!!!!

Answer:
125x=y
Step-by-step explanation:
Jan- $125
Feb- $250
March- $375
April- $500
May-$625
June-$750
July-$875
August-$1000
Sept-$1125
Oct-$1250
Nov-$1375
Dec-$1500
Equation is 125x=y
Ella will have $2000 after a year and 4 months