Is this right?? Plz help

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

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.

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.