Four times a number, y, is at least -20

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

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Identify the number 127 as a rational or irrational. explain