Answer:

Step-by-step explanation:
To find the inverse of a function f (x) follow the steps below:
1) Make y = f (x)

2) Solve for the variable x



3) Exchange the variable x with the variable y

4) Make 

Finally, the inverse of the function f (x) is: 
The error interval of the perimeter is 6.1 cm ≤ p < 6.15 cm
<h3>How to determine the error of interval?</h3>
The perimeter is given as:
P = 6.1 cm to 1 decimal place
The smallest number that can be approximated to 6.1 is 6.05, while the largest number is less than 6.15
This means that the interval is:
6.1 cm ≤ p < 6.15
Read more about error interval at:
brainly.com/question/16810055
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Most likely rates, percents and ratios at a higher level. Also, multiplication and division of fractions at a higher level.
Congrats on getting that far!
From here, simplify the equation by dividing each term by the greatest common factor: 6.
36B + 30C = 822600 becomes 6B + 5C = 137100
Now you have stackable simultaneous equations that you can easily work with:
6B + 5C = 137100
B + C = 24500
Multiply the terms in the second equation by either 6 or 5 so that you can subtract the second equation from the first equation and cancel out the B or C, respectively.
Example:
6B + 5C = 137100
minus 5B + 5C = 122500
equals B = 14600
Then plug your answer into the B + C = 24500 equation to find C.
Finally plug B and C into the A + C + B = 49000 equation to get A.