Answer:
She finished at 3:17 pm
Step-by-step explanation:
[See comment for complete question]
Given
Start time = 2:40pm
Mixing = 9 mins
Baking = 18 mins
Cooling = 10 mins
Required
Finish Time
To do this, we simply calculate the start time and the time for each task.
So:
Finish Time = 2:40pm + 9mins + 18mins + 10mins
Finish Time = 2:40pm + 37mins
Finish Time = 3:17 pm