Apollo 8 was the first manned spacecraft to orbit the moon at an average altitude of 185 km above the moon's surface. determine an equation to model a single circular orbit of the apollo 8 command module if the radius of the moon is 1,740 km. let the center of the moon be at the origin.

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%)