So this question is quite simple to solve. First and always, set your equation. Gather the most important highlights of this question.
1. Costs $0.50 to make one bracelet, b.
2. Sells for $20 per bracelet.
3. Also sells three times the production price plus $20.
Now, c is cost.
So, equation:
C = 3b + 20.
So thus, the answer is C.
