480700. The different combinations of students that could go on the trip with a total of 25 student, but only 18 may go, is 480700.
The key to solve this problem is using the combination formula 
. This mean the number of ways to choose a sample of r elements from a set of n distinct objects where order does not matter and replacements are not allowed.
The total of students is n and the only that 18 students may go is r:
The correct answer is 27inches
Answer:
(4 times x) -5
Step-by-step explanation:
Multiply 4 by a number, x, and <em>then</em> subtract 5.
You want to ensure that you're multiplying first before subtracting.
Your best bet would be __ × 7= 56, where the blank space represents the amount of vans needed to take the students to the game.
-Hope this helps!
