Can you please help me with this question

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail 8 * angelo says he wrote a total of 8/4 miles to russell says he's wrong and he actually and says that he actually wrote to my who is corrupt use words and trying to explain how you know.

Select a graph that have an equation with a < 0

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.