Find the best answers to your questions at Westonci.ca, where experts and enthusiasts provide accurate, reliable information. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

6. Ms. Halpert wrote the table on the board and asked for her students to find the missing value.
Who found the correct missing value?
# OF CUPS
OF COFFEE
4
6
12
COST ($)
10.60
15.90
?
31.8
ERIN
I subtracted.
15.90 and 10.60,
then added
5.30 and 15.90,
so 9 cups of
coffee is
$21.20.
OSCAR
I divided 10.60
by 4 and found
1
cup of
coffee is $2.65,
so 9 cups of
coffee is
$23.85.