Where is the vertex of the parabola? y = x2 + 6x + 9 a) on the y-axis b) above the x-axis 3) below the x-axis 4) on the x-axis

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.