HELP PLEASE !! Ivanna is riding on a bike course that is 15 miles long. So far, she has ridden 6 miles of the course. What percentage of the course has Ivanna ridden so far?

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

What is the slope of a line that is perpendicular to y = 3x + 1

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.