Answer:
(20 - 6c)
Step-by-step explanation:
Taylor buys bus tickets = 6
Let the cost of the one ticket = c
Cost of 6 tickets = $6c
If Taylor has paid $20 for these 6 tickets then the change he will receive = $20 - $6c
Therefore, the expression to calculate the change Taylor will receive will be
(20 - 6c)