Round the numbers in each expression to the nearest whole number. Then choose all expressions that are about 8. A. 3 1/5+5 7/9 B. 15 5/7−8 2/9 C. 1 5/8+5 2/5 D. 10 1/4− 1 11/15 E. 2 7/10+4 8/9

Which is the completely factored from of xy^3-x^3y

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

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.