I'll do part (a) to get you started.
The angle 'a' pairs up with the 123 degree angle as a corresponding angle pair. Due to the parallel lines, the corresponding angles are congruent. Therefore a = 123.
We also see that b = 123 as well since a = b (they are vertical angles).
Notice how angle c is adjacent to the 123 degree angle. These two angles form a straight line, so they must add to 180 degrees.
c+123 = 180
c = 180-123
c = 57
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To summarize, we have these three angles
a = 123
b = 123
c = 57
Answer:
7 students.
Step-by-step explanation:
10% of 70 is 7.
Answer:
4
Step-by-step explanation:
Yeah if you don't know this one... you're... special.
She has -80 because 4 withdrawalsof 50 is 200 subtract the that from 120 its -80
