Answer:
297
Step-by-step explanation:
297 ≈ 12 * √(12^2 + 4 * 11.124^2) + 12^2
x = y - 3
4x - 3y = 4
4 (y - 3) - 3y = 4
4y - 12 - 3y = 4
y = 16
x = 16 - 3
x = 13
48
6= 30 minutes
12= 1 hour
24= 2 hours
36= 3 hours
48= 4 hours