Answer:
I think It is 7
Step-by-step explanation:
Pete needs one more quart of paint, leaving two quarts in total.
You just add the values for volunteers that worked 16-20 hours and 21-25 hours which would be 50 + 10 = 60. So the total number of volunteers that workers more than 15 hours is 60.
Hahaha anyway thanks for the free point
