Ok do the original price minus the new price. 90-55=35. Divide that by the original number and multiply it by 100 to find the price decrease. 35/90=.3888*100=38.89
Approximately 19 students are likely to live in a college dorm out of every 30 students.
Answer: First option is correct.
Step-by-step explanation:
Since we have given that

We need to find the correct difference.
Collect the like terms together.

Hence, First option is correct.
3 presents.
Reason:
12 divided by 2 is 6, and 18 divided by 3 is also 6, meaning that he will be able to wrap 3 presents.