Afootball field is in the shape of a rectangle that measures about 120 yards long and 53 yards wide. what is the distance around a football field?

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.

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Which of the following contains a variable?