Answer is a look at y and it is the only answer that makes sense due to increase exponentionally in y while X is in 3a
8y - 11y + 6
Combine like terms
-3y + 6 is the simplified answer.
$0.25 = 5 bottles
Divide both sides by 5:
$0.05 = 1 bottle
Last week: $12.75
12.75 = 0.05b where b represents bottles
Divide all by 0.05 to get b alone:
255 = b