Answer: Hence, a) C(x)=65+4x
b) R(x)=17x
c) 5 sets of notes
Explanation:
Since we have given that
Fixed costs for setting up the new production line = $65
Cost for producing each set of notes = $4
Let the number of sets of notes be x
According to question ,
a) Total cost of producing is given by

b) Selling price of each notes = $17
According to question,

c) Break even point will be

At 5 sets of notes the business sell in order to break even.
Hence, a) C(x)=65+4x
b) R(x)=17x
c) 5 sets of notes