The two labeled angles are alternate interior angles, and as such, they are the same.
From this result you can build the equation

and solve it for x: subtract 13x from both sides to get

and add 2 to both sides to get

Check: if we plug the value we found we have

So the angles are actually the same, as requested.
Try making a proportion 10,000/1 and then 1000/x and solve
2 candies for each kid
explanation- if 6+7= 13 then there is 6 kids and 6 divided by 3 kids is 2 candies
The answer is B because area it's length times width and 5 times 3 is 15
Answer- 9 students preferred vanilla
Hope this Helps! :)