Since there are 5 pens total, and three of those pens are blue, the probability for both pens being blue is 3/5.
(just like if the black pens were being chose the probability would be 2/5, since there are 5 pens total and 2 black pens.)<span />
Base area* height
base area:
parallelogram: width*length
triangles: (height * base) /2
Answer:
I think it is 24 but I don't know the rest sorry 乁( •_• )ㄏ
The slope-intercept is the first option, y=-3x-6