$108.50
1 bottle collected= $1.50 + $2.00 + $2.50 = $6.00
2 bottles " = $5.00
3 bottles " = $5.50 + $6.00 = $11.50
4 bottles " = $7.00 + $8.00 = $15.00
5 bottles " = $6.00 + $9.00 + $10.00 = $25.00
6 bottles " = $2.00 + $8.00 + $11.00 + $13.00 = $34.00
7 bottles " = $12.00
Then you add up all the answers to get the final amount Eric earned.
$6.00 + $5.00 + $11.50 + $15.00 + $25.00 + $34.00 + $12.00 = $108.50.