The answer for this exercise is: It is a sequence whose pattern increases by $0.02. Therefore, the next amount of coins would be $0.35
The explanation is shown below:
1- You have the following pattern given in the problem above: $0.27, $0.29, $0.31, $0.33.
2- As you can see, the sequence has a difference of $0.02 between each term (amount).
3- Therefore, to find the next amount of coins you must add $0.02, as following:
[tex]0.33+0.02=0.35[/tex]
