In nine months, 55.6 gallons were used. Find the unit rate.(1 point)

To find the unit rate, we need to divide the quantity (55.6 gallons) by the number of months (9).

Unit Rate = Quantity / Number of months
= 55.6 gallons / 9 months
≈ 6.18 gallons/month

Therefore, the unit rate is approximately 6.18 gallons/month.