Answer:
30). 68°
31). 35.5°
Step-by-step explanation:
Question (30).
If WZ is the angle bisector of ∠XWY.
∠XWZ ≅ ∠YWZ
Therefore, measure of both the angles will be equal.
m∠XWZ ≅ m∠YWZ = 68°
and m∠XWY = 2(68°) = 136°
Question (31)
If WZ is an angle bisector of ∠XWY,
∠XWZ ≅ ∠YWZ
Therefore,
m∠XWZ = m∠YWZ = 
m∠XWZ = m∠YWZ = 
m∠XWZ = m∠YWZ = 35.5°
Answer:
1, 0 or 1, 1/2
Step-by-step explanation:

2 goes into 3 once
and doesn't fit into 1
So,
goes into
once
and it doesn't go into 
It could also be 1, 1/2
because half of two can fit into 1
so half of
can go into 
I don't know which one you're looking for...
Sorry
Answer:
(0, 5), (1, 3), (2, 1), (3, -1), (4, -3)
Step-by-step explanation:
To find the possible solutions, we just plug in a random value for x and then solve for y. When x - 0, y = 5. When x = 1, y = 3. We just continue doing this until we have 5 different solutions.
The answer should be the second option.
Hope I didn't mess up for your sake