Help? An atom of hydrogen has a mass of about 1.66 x 10-25 grams. An atom of oxygen has a mass of about 2.656 x 10-23 grams. How many times the mass of the hydrogen atom is the mass of the oxygen atom? Give your answer in scientific notation.

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Precalculus question, image attached.