What are the coordinates of b and c after undergoes a dilation centered at point a with a scale factor of 2?

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 size of the matrix resulting from

Simply 8x squared + 5(7x squared- x) - 2x =