Here is the equation:

You need to find f(3). To do that, substitute all the x's with 3:

The first thing you need to do is multiply 4 by 3. Multiply:

Here is your new equation:

To get your answer, you need to add 12 and 1. Add:

That means:

<em>If you have any questions, feel free to ask in the comments! :)</em>
the answer is $173.25( I had a question for this and i got it correct hope this helps)
Answer:
18
Step-by-step explanation:
f(2)=4x+10
f=(4)(2)+10
f=8+10
f=18
8cm
6/3=y/4 ________ cross multiply
3y=24 ________ divide by 3
y=8
I hope this is just a maths problem coz if this is your card number I wouldn't be putting it on here for all to see.