12 divided by 4 equals to 3
she paints 3 wall per hour
the answer is : the remaining wall will take her 1 hour to paint
Answer:




Step-by-step explanation:
<h3>Given information</h3>


<h3>Question 15. f(g(2))</h3>
<u>Substitute values into the first function</u>



<u>Substitute the values of the first function into the second</u>



<h3>Question 16. g(f(2.5))</h3>
<u>Substitute values into the first function</u>


<u />
<u>Substitute the values of the first function into the second</u>




<h3>Question 17. g(f(-5))</h3>
<u>Substitute values into the first function</u>


<u>Substitute the values of the first function into the second</u>




<h3>Question 18. f(g(-5))</h3>
<u>Substitute values into the first function</u>



<u>Substitute the values of the first function into the second</u>



Hope this helps!! :)
Please let me know if you have any questions
Answer:
option D or y = 7x + 2 is the answer