A straight line is 180° so....
9x+24 +6x - 24 = 180
15x=180. ( because you have to combine like terms.
X= 12
I think it is C but it also could be B as well
Loss implies a negative change, so the integer will be -15.
If you convert 7 1/11 to decimals it comes out to .09 there fore 5.89+7.09
Answer: 12.98