A. 10
B. 10√2
C. 20
D. 20√2​

Ihonestly don’t understand this at all

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.

What are the sotions to the quadratic equation 9x^2=4