Answer:
(x) = 
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 5x + 4 ( subtract 4 from both sides )
y - 4 = 5x ( divide both sides by 5 )
= x
change x to
(x) and y back to x, thus
(x) = 
6x2=12
12x4=48
This seems to obvious, so it may be wrong!
Answer: the one that ends with 30. D the fourth one
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
do you want an explanation?
btw, plz brainliest :)