The formula for the volume of a sphere is
, where r is the radius of the sphere. The steel ball to the right is in the shape of a sphere and has a diameter of 18 millimeters.
a. Find the exact volume of the sphere.
b. Find a 2-decimal-place approximation for the volume.​

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula, equation, to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

What is the perimeter of square abcd? units units 28 units 37 units

Use the distributive law to multiply. 3(4x + 5y + 6)