A variable resistor R and an 8-Ω resistor in parallel have a combined resistance RT given by RT =8R/(8+R) . If R is changing at 0.30 /min, find the rate at which R, is changing when R = 6.0 Ω

Create a report on the application you selected. Include the problem statement, mathematical and verbal work to answer all parts of the problem, and additional discussion of the problem and how it is useful. Note, you are to not only answer the question posed in the textbook, you are to create and comment on the application in general.
Your write-up should include proper mathematical notation and justification for all work and answers, both mathematical and verbal, along with a citation of the textbook since you will be using a problem from the book in your work.