The answer to that is 774
7P2, so 42 ways - permutation method since the order of choosing matters (chair and vice chair)
More = Addition
"Twice a Number" = Multiplication (specifically by two)

Since the order of operations tell us to multiply before we add, we can simplify

.
Answer:
False
Step-by-step explanation:
If F=4 that means 11 x 4 = 44 and 15 does not equal 44.
Answer: 3/7
Step-by-step explanation:
There's 28 student total.
12/28 simplify to 3/7