It would be $0.50. Each Heads earns you $0.50 and if you pay $0.50 you have a chance of doubling your money.
1- a
2- d
3- abd
4- d
5- a
sorry if wrong
If the question you're asking is -13-(-12), then your answer would be -1. Hope that helped.
The list of pairs of integers will be created by starting with the factor pairs for 30.
1 x 30
2 x 15
3 x 10
5 x 6
Then multiply these with negative integers which will result in a positive answer.
-1 x -30 (This means the opposite of one groups of negative 30, which is posiitve 30).
-2 x -15
-3 x -10
-5 x -6
