What is the area of a circle with radius of 3 inches? use pie =3.14 a .18.84 square roots b .28.26 square roots c .9.42 square roots d .113.04 square roots

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?

One side of a rectangle is 7 centimeters shorter than six times the other side. find the length of the longer side if we also know that the perimeter of the rectangle is 266 centimeters.

On average, a continental shelf drops 0.12 m per 100 m. at 22.5 m from the shoreline, how much distance has the continental shelf dropped?