What scale factor is shown in the graph? -1/2 -2 2 1/2

Find the value of the cosine for angle a

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.

What is the greater volume 72 quarts or 23 gallons