Hey there!
RANDOM FACTOID:
‘‘f(x)’’ or ‘‘g(x)’’ is understood to be “y”
f(x) = 2x
f(x) = 2(3)
f(x) = 2 + 2 + 2
f(x) = 4 + 2
f(x) = 6
Therefore, your answer is: f(x) = 6
g(x) = 5x
g(x) = 5(3)
g(x) = 5 + 5 + 5
g(x) = 10 + 5
g(x) = 15
Therefore, your answer is: g(x) = 15
OVERALL ANSWER: f(x) = 6 or g(x) = 15
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)