Algebra 2 question. Options.

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6

Subtract and simplify. (-y^2 – 4y - 8) – (-4y^2 – 6y + 3) show how you got the answer if your answer is right i will mark you