Can someone plz help me with this

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

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

The suare root of 9x plus 7 plus the square rot of 2x equall to 7