Because this triangle is an Isosceles triangle, two of the angles will be the same. You can tell this is an Isosceles triangle because two sides have the same length but the other does not. You can use this to make an equation. Because a triangle has 180 degrees all together, you can use the equation 2x+56=180. To solve for X you first do 180-56. You will get 124. Now you have 2x=124. You then divide 124 by 2. You will then get 62. This means X = 62 or 62 degrees. The final answer will be X = 62 Degrees.
Your answer is:

This is because there are 40 boxes in total. The chance of a white box being handed out is 10/40. If a white box is handed out as a prize, there are going to be 39 boxes left, but only 9 of those 39 boxes would be white.
Ideally, tree diagrams should be used to solve such problems.
Four, Coastal Plains, North Central, Great, and Mountain plains
Answer: 
Step-by-step explanation:

We can swap the subtraction with addition to find out what ? equals to:
? - 66 = 25.
? = 25 + 66.
? = 91.
Check:
91 - 66 = 25