Answer:
2,184 different skateboards
Explanation:
Use the fundamental counting principle to solve this. This is where you multiply all possible choices together to get the total...
(3)(13)(7)(4)(2) = 2,184 different choices
He can choose 1 type of grip tape and still have 13 choices for decks, 7 choices for trucks, 4 choices for bearings and 2 choices for wheels. With 3 choices for tape in the first place, he has
(3)(13)(7)(4)(2) combinations he can make