Hello can someone please help me with this Find the volume of the sphere.
= 3 cm
Formulas for Spheres
V = for V = [?] cm3
Round to the nearest tenth

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)