Answer:
b=1
Step-by-step explanation:
<u>First, let's regroup, terms,</u>
<u>Add 11 to both sides,</u>
<u>Simplify, 7+11 = 18,</u>
<u>Now, divide both sides by 3,</u>
<u>Simplify, 18/3 = 6,</u>
Subtract 5 from both sides,
Hope it helps! :)
210
because you use 13.% divided by the price