First seat = 9
second seat = 9 + 6 = 15
third seat = 15 + 6 = 21
fourth seat = 21 + 6 = 27
fifth seat = 27 + 6 = 33
sixth seat = 33 + 6 = 39
Answer:

Step-by-step explanation:



Substitute
into second equation:




Substitute
and
into the third equation:



Substitute
into
:

Plug in y and z values into
:

Hi!
<h3>To find the slope, use this formula</h3>

<h3>Put in the values</h3>

<h2>The slope is 1 </h2>
Hope this helps! :)
-Peredhel
25*8.14=?
Multiply the cost of the book per person ($8.14) by the number of people (25).