D) The mean age of them is 15.
Mark with crown please!
Answer:
12
Step-by-step explanation:
54 / 3 =18
18 x 40 minutes = 720
720 / 60= 12
12 hours
G(x) = 3x
g(x) = 3*( x )
g(f(x)) = 3*( f(x) ) ... every x has been replaced with f(x)
g(f(x)) = 3*( 3x ) ... replace the f(x) on the right side with 3x
g(f(x)) = (3*3)x
g(f(x)) = 9x
The answer would Be C. Or B
Your welcome!!!!!!!
18692 i think hahahahhaha