What is the area of the shaded region? area = ft2

F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove