Three prime numbers which add up to 25

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

The system of equations graphed below has how many solutions? y = 2x + 2

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?