3.) A 50ft by 40ft one-story house sits in the middle of a lot that is 80 ft by 60ft. If the edge of the house to the
edge of the lot is covered in grass, how many square feet
of grass will the owner mow?

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55