Answer:
There seems to be a question and then nothingness. What dont u get.
Step-by-step explanation:
plzzz brainliest
Answer:
the answer is b. 4+y
Step-by-step explanation:
all the other options are just expressing 4 in different ways
For 3 hours total fee is the same
my work is above
Step-by-step explanation:
let y=f(x)
y=3x+7 ,then x=3y+7➡️3y=x-7➡️y=(x-7)/3
f'(x)=(x-7)/3