Could someone help me please? You could do the ones you know, and try to explain.

I only know the answer to B which is 50*

Step-by-step explanation:

B is 50* because there are 3 vertical lines therefore the angle opposite of 80* is also 80* so when we add them together, we can take 160* out of the 360* whole. so now we are left with 200* which are 2 sets of vertical lines and one of each of the vertical lines are x therefore the remaining angles are equal so all I have to do is divided 200* by 4 which is 50 therefore x is equal to 50*.

PS: the * sign is supposed to be the degree sign but I don't have it on the keyboard so just act as if it was the degree sign lol

the 3rd option is right

step-by-step explanation:

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get