Is there any other information?
You basically just get a equation that needs to be answered and grab the answer and minus it by one of the two digits in front. Example: 3+2=5 is equal to 5-2=3
What is the question if you do not mind me asking??
The answer is 7/10. Do you need help with any other problems?
B.8 adults
because $5.50*8=$44 $98-$44=$54 54/4.5=12kids