Answer:
3:123 4:0 5:13.69
Step-by-step explanation:
I hope this helps
PEMDAS!
1. 7-14=-7
2. -1*-7 = 7-5=2
3. 18-2-9 = 7
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 answers are 17 and 3
17 - 3 = 14
17 + 3 = 20
Answer:
x = 15
Step-by-step explanation: