The temp fell 3 degrees every hour for 5 hours what's the change in temperature

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 many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Me find the value of x each figure.