Step-by-step explanation:
f
(
x
)
=
x
(
2
x
−
1
)
becomes:
f
(
3
)
=
3
(
(
2
×
3
)
−
1
)
f
(
3
)
=
3
(
6
−
1
)
f
(
3
)
=
3
×
5
f
(
3
)
=
15
Answer:
8-27=
Step-by-step explanation:
X=12.3..............................................
D because it is talking about meters hope this helps