30-[(9x2)-(3x4)]
30-[18-(3x4)]
30-(18-12)
30-6
24
29/36 =0.805555556 = 81% if you need to round up
The total will be 08.99 because that’s how you divide and he is winning
Answer:

Step-by-step explanation:
Given: f(x) = 4(3x - 5)
Is required to find f⁻¹(x)
f(x) = y = 4(3x - 5)
∴ y = 4 * 3x - 4 * 5
∴ y = 12x - 20 ⇒ add 20 to both sides
∴ y + 20 = 12x ⇒ divide both sides by 12
∴ 
Replace the places of x and y.
∴ 
∴ 