Either A. or D. Kinda hard to tell but I tried.
157.1 cm ^2 , because the small shaded semicircle equals the other small unshaded semicircle. So it’s the area of half the circle.
To defend the (indigent) criminal to the best of their ability - the same as any defense attorney.
The Proterozoic division of the geological time scale is an era of the Phanerozoic eon. The Proterozoic division began 2.5 billion years ago and ended 542.0 million years ago.