The circumference of a dinner plate is 15.7.what is the radius

Multiply. −2x(6x4−7x2+x−5) express the answer in standard form. enter your answer in the box.

Amonument at a park is in the shape of a right square pyramid. a diagram of the pyramid and its net are shown. what is the surface area of the monument? enter the answer in the box. m²

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61