Flying against the wind, a jet travels 7440 miles in 8 hours. Flying with the wind, the same jet travels 3570 miles in 3 hours. What is the rate of the jet in still air and what is the rate of the wind?
Rate of the jet in still air:
Rate of the wind:

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.

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.