First we need to calculate how many years her brother has when she is 18. As text says he is:
18/3 = 6 years old
Now when she gains another 18 years (36-18=18) he will also gain those 18 years
When she is 36 he will have 6+18=24 years old
Answer is 24.
You can see that the two angles (38° and 7) form a line or 180°. So, angle 7 and 38° must add to 180°. So, angle 7 is:

Your answer is
142°.
Answer:
x, process, y
-2, -2-1, -3
-1, -1-1, -2
0, 0-1, -1
1, 1-1, 0
2, 2-1, 1
X = -2, -1, 0, 1, 2
Y = -3, -2, -1, 0, 1
Step-by-step explanation:
Coordinates for the graph are ( -2,-3), (-1,-2), (0,-1), (1,0), (2,1)
The graph is the image attached to this.
How to get Y:
-2-1= -3
-1-1= -2
0-1= -1
1-1= 0
2-1= 1
Hope this helps.