Whats the rest of the question ?
Answer: 14
Step-by-step explanation:
1.75x -2 + 1.75x -2 + 1.75x -2 =67.5
5.25x-6= 67.5
5.25x =73 .5
X = 14
The correct answers are 5, 10, and 15. I'm doing the same subject and I got a 100 on a question similar. Good luck!