
- f (x) = 3x² + x
- Find f (-5).

Given,
Now, we have to find f (-5). To find this, we just need to substitute -5 in the place of x.
So,

Answer:
x = 18 and x=0
Step-by-step explanation:
Answer:
Should be D.
I don't know why it won't let me respond with under 20 characters.
32 + 2x = 84
2x = 52
x = 26
child's ticket is $26