PLEASE HELP DON'T SCROLL. ONLINE SCHOOL IS TAKING A TOLL ON ME. PLEASE HWLP ACCURATELY AND FAST THIS IS ALSO JUST PART A

If f(x)= 3x+6 which of the following is the inverse of f(x)

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

Which representation has a constant of variation of -2.5