What is the volume of a sphere with a diameter of 4.9 cm, rounded to the nearest
tenth of a cubic centimeter?

Write an explicit formula that represents the sequence defined by the following recursive formula:

Which is an equation for the nth terms of the sequence 12,15,18,21

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?