For the three-part question that follows, provide your answer to each part in the given workspace. Identify each part with a coordinating response. Be sure to clearly label each part of your response as Part A, Part B, and Part C.

Use the situation below to complete all parts.

Clive has a phone plan where he pays double his base per minute rate for any additional minute spent on a call over twenty minutes.

Part A: Determine and define the variables needed to model the situation.

Part B: Write an equation to model the situation, using the variables defined in Part A.

Part C: If Clive was charged
$
3.92
for a
38
minute call, what is Clive's per minute base rate? Show all work.