Not enough information, because we do not know what b or c is.
The BEST ANSWER is: 4b + 3c is the total amount Marina spent.
They are 4 unit away from the Y axis because you are counting the square units from Y not the lines across.
Answer:
Explanation:
<u>1. Given equation:</u>
<u>2. Given intensity:</u>
<u>3. Decibels</u>