ritchie wants to paint his bedroom ceiling and four walls. the ceiling and each of the walls are 8 feet by 8 feet. a gallon of paint covers 40 square feet. write an expression that can be used to find the number of gallons of paint ritchie needs to buy

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

The longer leg of a 30-60-90 trangle is 18