Answer:
the answer is 13.4078
Explanation:
First, we calculate the processing fee: 10.99 * 0.1 = 1.099
Then, we calculate the GST: 10.99 * 0.05 = 0.5495
Then, we calculate the PST: 10.99 * 0.07 = 0.7693
Now, we add all of the costs together: 10.99 + 1.099 + 0.5495 + 0.7693 = 13.4078
So the answer is 13.4078