Answer:
Step-by-step explanation:
1. 120+21=141
2. 21-3=18
3. 7x-21
4. 20+x
5. 45+4x
6. 40+5c
7. 20+22r+26s
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Answer:
x= 15
y= 5
Step-by-step explanation:
it is a reflective opposite side exterior angle or line you are seeing.
The angle on the other side is a vertical angle meaning it is the same. Which leads to show that the measurements are the same as well.
Answer:
50% of 180 is 90
Step-by-step explanation:
50% is like saying half. They want you to find half of 180, if you know 9 times 2 equals 18, then you already know the answer, all you have to do is add a 0 on the end of the 9.
Or if you're not as strong with mental math, plug into a calculator 180 times the decimal version of 50% which is .5. 180 times .5 equals 90.