Answer:
The correct equation for this situation is: 27 = j + 9, where j represents the number of shells Jamie has collected.
To find out how many shells Jamie has collected, we need to solve this equation for j:
27 = j + 9
Subtracting 9 from both sides of the equation:
27 - 9 = j + 9 - 9
18 = j
Therefore, Jamie has collected 18 shells.
So, the correct answer is A) 27 = j + 9; Jamie collected 18 shells.
Explanation: