What is 7 to the power of 8 times seven to the power of -4

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.

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?