Yvaries directly with x if y=15 when x=-18 find y when x=1.6

The green family is a family of six people. they have used 4,885.78 gallons of water so far this month. they cannot exceed 9,750.05 gallons per month during drought season. write an inequality to show how much water just one member of the family can use for the remainder of the month, assuming each family member uses the same amount of water every month.

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?