The moon is a sphere with radius of 959 km. Determine equation for an ellipse if the distance of the satellite from the surface of the moon varies from 357 km to 710 km

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.