3/10 * 2/9 = 1/15
There is a 1/15 chance that both of the shirts he grabbed are black....
:)
The first one, second, and third
(2*3*1)=6
135/6=22.5
1st = 22.5 ft
2nd= 45 ft
3rd = 67.5 ft
add it up and you get 135 feet
Answer: The third answer Y = 2X + 3