Me? (i'm new and don't know how to give medals)
the range of the following relation r {(3, −5), (1, 2), (−1, −4), (−1, 2)} is
a ){−1, 1, 3}
b) {−5, −4, 2}
c) {−1, −1, 1, 3}
d) {−4, −5, 2, 2}

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-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

I’m stuck on this equation, anyone got the answer?