1 question please help, will mark brainliest

Okay so first add up the money Mrs. Mess gave the clerk.
$100 + $100 + $200
Then add the money that the clerk gave Mrs. Mess:
$50 + $50 + $50 = $150
Mrs. Mess payed $200 and the clerk gave $150 back. So you minus the $150 from the $200:
$50.00
I hope this helped and good luck!
Answer:
$50
Step-by-step explanation:
She gave him two $100 bills, which is $200. He gave her back three $50 bills, which is $150. She should've got $130 back, but the clerk gave her $150. Which means we subtract the $20 difference from the cash she spent ($70). So overall, she only spent $50.