Answer:
16
Step-by-step explanation:
Basically,
1st step: Look at the key words 5%, 60%, total cost, 15%.
Next, divide 60/15 (=4)
Then, divide 60/5 (=12)
Now, you add up 4 + 12 (=16)
Then, you lastly subtract 60 - 16 (=44)
And, they were asking for the total cost of the tax and tip (16)
So, your answer is 16!
Hope I could help! :D
Let me know if you have any problems understanding, I will be very glad to help you.