To solve this problem you must apply the proccedure shown below:
1. You have the following information given in the problem above: $29.78 plus 5% tax and 15% tip.
2. Therefore, you have:
Total=$29.78+(0.05)($29.78)+(0.15)($29.78)
3. Then, the result is:
Total=$35.74
Therefore, as you can see, the answer is the option D, which is: D. $35.74