You spin a spinner with four equal sections labeled 1, 2, 3, and 4 and toss a dime.

Its : (1, H), (2, H), (3, H), (4, H), (1, T), (2, T), (3, T), (4, T) When you flip a coin, you can result in heads (H) or tails (T) when you spin a spinner with 4 equal sections, you get 1, 2, 3, or 4 (1, 2, 3, 4) Therefore the 8 combinations are above.

Hope this helps :)