Answer:
The expression is:

Step-by-step explanation:
- let '
' be the number of weeks
- let '
' be the total number of cans
As Nixon recycles 6 cans every week, so the expression becomes

$6.90 divided by 3 is $2.30 which is the unit rate and if you multiply $2.30 by 10 you get $23
Answer:
there are 12 cans
Step-by-step explanation:
6 x 2 =12