What is the sum of the degrees from a diagram with 5 vertices?

It is not 540

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Someone answer this asap for the function f(x) and g(x) are both quadratic functions. f(x) = x² + 2x + 5 g(x) = x² + 2x - 1 which statement best describes the graph of g(x) compared to the graph of f(x)? a. the graph of g(x) is the graph of f(x) shifted down 1 units. b. the graph of g(x) is the graph of f(x) shifted down 6 units. c. the graph of g(x) is the graph of f(x) shifted to the right 1 unit. d. the graph of g(x) is the graph of f(x) shifted tothe right 6 units.