Everybody knows that gAnGbAnGiN 101 is the real stuff​

What is the volume of the sphere shown below with a radius of 3?

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

Write the percent as a fraction or mixed number in simplest form. 0.8%