Ho do you explain why 21/30 is greater than 2/3?

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.

It says factor each expression 49x-28?

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2