Sample Space is pretty simple.
Pentagonal die has 5 sides.
Coin has 2 sides.
# of sides = # of possibilities for each item
The sample space is just a box showing the possibilities.
eg. Sample space for 2 coins.
(H, H) (H, T)
(T, H) (T, T)
Notice how each coin has 2 sides, therefore 2 possibilities. So the box is going to be a 2x2 box. With 2x2 = 4 entries.
So, the sample space for your question should have 2 x 5 = 10 entries. Just some busy work.