How do you find the mean or the range of a histogram?

Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

Asphere has a diameter of 10 in. what is the volume of the sphere?

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.