7.8
8
Which is closet to the value of x?

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.

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y