Answer:
F(8)=120
Step-by-step explanation:
f(x)=15x
f(8)=15(8)
f(8)=120
63*42=2646
22*22=484
Area of Shaded Gray portion=2646-484=2162
75,000,012
enjoy, i guess
b = 18.8
A = 9.1°
B = 80.9°
Have an amazing day :D