The relationship is not proportional because the boys and girls are in different grades and they are in different activities.
D. Both the intake valve and the exhust valve are closed.
Answer:
<h2>83.928571428571%</h2>
Step-by-step explanation:
<h3>Convert fraction (ratio) 47 / 56 Answer: 83.928571428571%</h3>
8/3=3x (cross multiplied to get this)
X=8/9 (divided both sides by 3)
Hope this helps :)