Find the parallelograms please​

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.