What is the percent of change from 14 to 21

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2