Are rational numbers always integers?

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

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?