Tree = (-4,2)
Pool = (3,4)
Ant Hill = (1,-4)
Barbecue Grill = (-5,-2)
Flowers = (0,3)
What we are going to do is add

by

. The first thing we do is make common denominators for

and

:

. Now we add

by

:

. Now we make

a mixed number:

. Therefore, your answer is

. Hoped I helped. :)
Answer:
1/3 of the school in 5 minutes or in 15 minutes he will mop the whole entire school.
Step-by-step explanation: