Help me with this question to get brainliest

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

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

How do i do this activity, is appreciated