Answer:
A. 72
Step-by-step explanation:
Determinant of a 2x2 matrix: ad - bc
In that case,
24(18) - 30(12)
432 - 360
72
And we have our answer.
I will help
100 feet would make the enclosure the longest
The graph shows that at 100 feet the line is at its highest point.
I'm pretty sure its 40
hope I helped