a. is <u><em>Substitution Property</em></u>
b. might be <u><em>definition of supplementary angles</em></u>
Answer:
Step-by-step explanation:
2+3=6
135/6=22.5
22.5x2=45
Using proportions, it is found that the coordinates of point B are given as follows:
A. (1.6, 0).
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
Point B is 3/4 of the way from AB to AC, hence:

The points are:
Then, to find the x-coordinate:

x + 2 = 3.6.
x = 1.6.
For the y-coordinate:

y + 3 = 3
y = 0.
Hence option A is correct.
More can be learned about proportions at brainly.com/question/24372153
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Answer:
answer is 13
Step-by-step explanation:
13+38=51
4*13-1=51