Answer:
he is correct he might have seen it's 3 times more than 18-29 which is 10% so he just multiplied 45 with 3
The answer would be 9 Permutation 3 (or 9P3) which is equal to 504 possible ways.
(50-25)/2
25/2
12.5
25+12.5=37.5
8 ounces, it said it at the end of the question.
