You multiply 9 times nine 6 times. ~9*9*9*9*9*9~
False they will be parrallel and never meet
When you go to stores and it advertises 25% off or something like that is a big one. tipping 15% or 20% is another application. a third would maybe be the interest you earn on a bank account??
False, vertical angles are not next to each other but opposite of each other