Answer:
"she could have sold between 14 and 24 glasses"
Step-by-step explanation:
7 to 12 glasses sold per hour
Min 7 glasses and Max 12 glasses
If she sold for 2 hours, her minimum would be:
7 * 2 = 14 glasses
and her max would be:
12 * 2 = 24 glasses
Hence,
she could have sold between 14 and 24 glasses