Answer:45 miles in one hour. You take the total of 315 and divide that by the 7 hours and that gives you how much is in the one hours
Step-by-step explanation: hope this yu this the best answer
Just subtract the two. 10x^8 - -15x^8. The answer is 25x^8 because the two negatives come together to make a plus.
14k+2y+15 :) You have to combine like terms and then the 2y and lastly the 6+9 which equals 15.