Find the area of a regular hexagon if the radius of a circle is inscribed in the hexagon is 5√3? Pls explain and I will mark brainliest!

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

Math question.. plz me .. best answer all

72 the length of a side of a triangle is 36. a line parallel to that side divides the triangle into two parts of equal area. find the length of the segment determined by the points of intersection between the line and the other two sides of the triangle.