Answer:
a) Yes.
b) Yes.
Step-by-step explanation:
Meredith and Hillary both want coffe, but they don't know if the other two people do, therefore they can't know if everyone want coffee. If they didn't want coffee, their answer would have been just "no".
Aly knows that she doesn't want coffee, therefore she knows that not everyone wants coffee.
I would say 75 or 150
Do u know how many students are in her school?
The hypotenuse would be 9 inches as 6 is equal to 2/3 of 9 :)