Please help on this please thank you

30% = 0.3

Since 30% of 90 is 27, the average person uses approximately 27 gallons of water outdoors per day.

Solution:

To write percent to decimal, divide the number by 100.

       = 0.3

30% = 0.3

Average use of water each day = 90 gallons

                = 27

Since 30% of 90 is 27, the average person uses approximately 27 gallons of water outdoors per day.