Awater tank holds 18,000 gallons. how long will it take for the water level to reach 6,000 gallons of the water is used at an average rate of 450 gallons per day?
equation y=mx+b

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells,n, and the total amount he earns in a year,e. what is the total amount abe would earn from selling 10 apartments in one year

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.