If f(x) and g(x) are inverse functions of each other, which of the following statements is true?

a.) f(x) divided by g(x) =1

b.) f(x) = -g(x)

c.) (f•g)(x) = 1 (the back dot does not mean times, it means f of g of x)

d.) (g•f)(x) = x

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Landon wrote that 3−2.6=4. which statement about his answer is true?