What is the best way for a real estate agent to handle the area occupied by the stairs when determining the square footage of a two-story house?

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars

The sum of two numbers is 12 and their difference is 18 what are the two numbers

What is the range for 31,39,29,34,37,24,36,33,34,28