I need help please, it’s due in 10 minutes

What can be said about the relationship between triangles and circles? check all that apply. a) many circles can be inscribed in a given triangle b) exactly one triangle can be inscribed in a given circle c) exactly one circle can be inscribed in a given triangle d) many triangular shapes can be circumscribed about a given circle

Which of the following best describes the figure?

If the tip varies directly with the number of guest which equation represents between the tip,t, and the number of guest,g?