Billy, let's recall what a linear pair of angles is:
• They are formed when two lines intersect.
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• Two angles are said to be linear if they are adjacent angles formed by two intersecting lines.
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• The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.
Upon saying that we have that:
• CAD and DAE are linear pairs
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• CAD and CAB are linear pairs
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• DAE and BAE are linear pairs
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• DAE and DAC are linear pairs
Now, you are ready to select all the options that actually apply.
675. Just subtract. 1000
- 325
Set it up like this.
Answer: (-2;8)

Step-by-step explanation:
Answer:
measure of angle ABC is 6 degree.
Step-by-step explanation:
After you found x, you'll plug it in the equation of the angle it's asking for.
Measure of angle ABD, and you know measure of angle ABC = 4x-1.
4(1)-1 = 4-1 = 3
Measure of angle CBD = 2x+1.
2(1) +1 = 3
Measure of angle ABC is ABD + CBD
3 + 3 = 6