Can someone answer these pls pls

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

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

Which of the following expressions are equivalent ?