Answer:
30 - 10 - 15 + 10
Step-by-step explanation:
Henry had $30.
The admission was $10.
30 - 10.
Then he dropped $15.
30 - 10 - 15.
His sister lended him $10.
30 - 10 - 15 + 10.
Hope this helps and good luck!
Feel free to message me if you need more help! :)
