Help imma fail school

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

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?