Take 145-115 because for this your supposed to add all numbers inside to get exterior angle so you would do 145-115=30
R would be 30
R=30
Hope this helps
Answer:
friction
lol you’re welcome
The answer is A.
Parallel lines have the same slope, which is 1/2 in this problem. The equation of the line in A matches the slope of 1/2 and also passes through (-8,0). You can check that it does by substituting the x and y values in the equation, like this:
0 = 1/2(-8) + 4
0 = -4 +4
0 = 0 which checks!
x= 15
4x+8x: 180
12x: 180
x: 180/12
x: 15
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