Charles meets with customers on a daily basis. he uses the function
f(x) = 5x - 81 + 20 to calculate how many dollars he charges, per
hour, for his time.
5. how much does charles charge per hour if a customer hires him for 3 hours?

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?