The total number of possible outcomes is the product of the number of outcomes for each event.
The spinner can land on any of its 5 sections on the first spin, and on any of the 5 sections again on the second spin. So there are 5 x 5 = 25 possible outcomes for the spinner.
The dice can land on any of its 6 sides.
The coin can land either heads or tails.
Therefore, the total number of possible outcomes is:
25 (spinner) x 6 (dice) x 2 (coin) = 300 possible outcomes.