None of them are correct.
You have to isolate the variable by dividing each side by factors that don't contain the variable.
And when you do so you get a closed point starting at positive 8 and an extending ray to positive infinity and a closed point at -15 with a ray extending to negative infinity on the number line so none of them are correct.
Answer:
Step-by-step explanation:
5+n+4+7+n+8=360
24+2n=360
2n=360-24
2n=336
n=168
12-7=5
all you have to do it subtract the number of pens from the number of pencils
Answer:
6. A
7. D
8. B
9. C
10. B
Step-by-step explanation:
The missing angle is: 25 degrees