Solve the problem.An electrician charges a fee of $50 plus $35 per hour. Let f(x) be the cost, in dollars, of using the electrician for x hours. Find a formula for f(x).
A. f(x) = 35x + 50
B. f(x) = 50x + 35
C. f(x) = 50x - 35
D. f(x) = 35x - 50
Answer: A
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