What is
(
f
∘
g
)
(
x
)
if
f
(
x
)
=
2
x
+
3
and
g
(
x
)
=
x
4
?


(
f
∘
g
)
(
x
)
=
3
4
x
+
1
2


(
f
∘
g
)
(
x
)
=
1
2
x
+
3
4


(
f
∘
g
)
(
x
)
=
1
2
x
+
3
2