1. Arabella was washing dishes at the end of her shift at a restaurant. She washed 15 plates from 6:30 to 6:35.
When she finishes washing all the plates, her shift will end.
(a) If she started washing plates at 6:20 and ended at 6:38, estimate how many plates she washed in
total. Explain your reasoning. (5 points)
(b) Write an equation to represent how many plates Arabella has left to wash at 6:35 after her start at
6:20. Explain your reasoning