P(not 3)=5/6 this is the correct answer
I can answer only 1st coz I have no idea about 2nd problem..
Here Hypotenuse is 5

a =x
b =4
c = 5
5 square =x square +4 square..
25 =x square+16
25 -16 =x square
9 =x square..
√9 = x
3 = x..
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32 cars per hour. If you do 256 divided by 8 you get 32.
Hope this helped!