Answer:
The answer should be rectangle only.
The answer you are looking for is 1&1/3
The production cost is an illustration of a quadratic function
<h3>How to determine the equation</h3>
We have the following parameters:
- Computing components (a)
- Number of devices (x),
- Labor (b)
- Savings on reusable material (c)
Using the instructions in the question, the equation of the production cost would be:

Hence, the production cost is 
<h3>Change the subject of the equation</h3>
In (a), we have:

Subtract bx - c from both sides

Divide through by x^2

Hence, the equation that represents the computing component is 
Read more about equations and functions at:
brainly.com/question/1214333
5/ 1+1= 5/2
1+4/1^2-3(1)-4= 5/-6
5/2 - 5/-6 does not equal zero
(84÷7)+(9÷3) The parentheses are not necessary but I just put them.
I think that's what you meant. If you meant the other thing this would be the equation: (84÷7+9)÷3. Here the parentheses are nessasary