Answer:

Step-by-step explanation:
<u>Given polynomial </u><u>function </u>:-

<u>To </u><u>find</u> :-

<u>Solution:-</u>

Here, the value of x is 7(given).
So, <u>Substitute the value of x on the RHS and </u><u>on </u><u>LHS </u>:-

Simplify the RHS:-
<u>Multiply 10 and 7 :-</u>


<u>Add 70 and 45 :-</u>

We're done!
Hence, the value of f(7) would be,


I hope this helps!
Let me know if you have any questions.
I think it’s $1.35 sorry if I’m not correct
-31 is a thing and it would be pronounced negative thirty-one hope that helps