From what i interpreted this question as... this is what i got and i hope i helped a bit
I think it would be 25 because the line is under 25
Maybe he didn't want anyone seeing his weight? I'm not sure what the question is here.
Answer: A
Explaination:
The cause and effect relationship of a certain phenomenon under controlled condition
In order to do these, simply translate the sentence mathematically.
1) x-15=7
2)3x+4=13
3)x+x+2+x+4=51
Hope this helped :D. Comment below if you have any questions!