If you toss eight coins, there are 256 (28) different outcomes.
2x2x2=8 possible outcomes. In general for n tosses there are 2^n outcomes.
4
If you mean roll 2 dice and spin a 2 colour spinner, there would be a total of 72 outcomes.
Two
There are 12 possible outcomes.
Two times the number of outcomes of the spin - which is not specified in the question.
6 2 on the coin, 3 on the pointer: 2x3=6
If you toss eight coins, there are 256 (28) different outcomes.
2x2x2=8 possible outcomes. In general for n tosses there are 2^n outcomes.
24 or 16
There are 4 possible outcomes. There are 2 outcomes (heads or tails) on the first toss and 2 on the second toss. The possibilities are HH, TT, HT and TH.
There are 96 possible outcomes. A dodecahedron has 12 sides, so it has 12 possible outcomes. An octohedron has 8 sides. So for each of the 12 outcomes on the dodecahedron, the octahedron has 8 possible outcomes, hence you multiply 12 x 8 = 96.
There are 6*6*2 = 72 possible outcomes.
2^4 = 16
There are three possibilities, Heads, Tails and stand on edge
4