The answer is 4. I hope this has helped.
Answer can be wrote in two ways. -2.5a-5/6b or -5a/2-5b/6
Answer:
233.3 cubic units
Step-by-step explanation:
Volume of a pyramid
× base area × height
The volume of the pyramid



= 233.3 cubic units (rounded to the nearest tenth)
Scrubbing the floor=15:00$
Dusting=15:00$
Total:30:00$