We know that Kelly received x + 10 orders for wrapping paper, and Flora receive 4 times as many than Kelly, so Flora receive:
4(x+10)
Use distributed property
4(x)+4(10)
=4x+40.
These two girls get:
4x+40+x+10
Combine like term
4x+x+40+10
=5x+50. As a result, 5x+50 is your final answer. Hope it help!