Which of the following is the commonly accepted form? I honestly cannot tell the difference between your 2s and your 7s. both I honestly cannot tell the difference between your 2's and your 7's.

Jordan rides his bike 6 7/15 miles every day to deliver newspapers and to go to and from school. if his ride to and from school is 4 3/10 miles, how many miles is the trip to deliver newspapers? 1 1/3 1 1/6 2 1/6 2 4/5

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base