I honestly forgot all about these so can someone help?

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Amanager recorded the number of bicycles sold by his company each quarter. his projected sales after t years is given by the expression below. which of the following statements best describes the expression? a. the initial sales of 575 bicycles increases at the rate of 4% over 4 quarters. b. the initial sales of 575 bicycles increases at the rate of 18% over 4 years. c. the initial sales of 575 bicycles increases at the rate of 4% over t quarters. d. the initial sales of 575 bicycles increases at the rate of 18% over t years.

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error