naomi's class gets to keep 20% of the money they earn from selling calendars. this class sold 600 calendars. last year they sold 650 calendars. in which year year did they earn more money

Answer:
They earned more money "last year" than "this year". 20% of 600 is 120, 20% of 650 is 130, which is larger than 120. 130 > 120. Hope this Helped!