Due to the common probability formula I can solve that task. Refering to the task you gave, we have all the information we need. We solve it like that:

So the answer is the first option <span>
0.621%</span>
Answer: -21.125 or -21 1/8 degrees
Explanation: Divide the number of degrees (-169) by the amount of time it was snowing (8) to get the answer (-21.125).
-169÷8=-21.125
Answer:
The second option
Step-by-step explanation:
This is because the more samples she has, the closer her experimental probability will be to the real value.
Step-by-step explanation:
So, x=width and the width=13+L. The formula for perimeter is 2(L)+2(W) and the total perimeter in this question is 62 feet. That means 2(L)+2(13+L)=62 feet. Solve for L and that's going to be your length. Add the length plus 13 and you'll have the width. Double check the equation by plugging the width and length back into the equation. (Does that help?)
They are already rounded but 20% and 30% should be correct.