What is ... I am very confused plz help me.

The answer is 40 degrees.

Step-by-step explanation:

Let's look at the bottom triangle first.  We know that the sum of the angles of a triangle is always 180.  We have two 50s, totalling 100, so the remaining angle is 80.

Angle 1 plus the angle we just figured out must also add up to 180, since it's a straight line.   So, angle 1 is 100.

The bottom right angle of the upper triangle is 80, but the same property we used to calculate angle 1.

So, now we have two angles, 60 and 80, with another angle needed to add up to 180.  So, angle 2 is 40.

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

$15 each

step-by-step explanation:

$45/3 children= $15 each