Answer:
17 + 15 + 15 = 47 from the coins she got from others and subtract 29 from 47 because she gave 29 coins away so 47 - 29 to get 18 so 47-29=18
Step-by-step explanation:
17 + 15 + 15 = 47
47 - 28 = 18
She is left with 18 coins