Hello, there!
The formula for area is
L * W = A
So, to find width, the formula would be
A ÷ L = W
So, let's plug in the numbers.
2460 ÷ 30 = W
2460 ÷ 30 = 82
Therefore, the width of the garden is 82 feet.
I hope I helped!
Let me know if you need anything else!
~ Zoe