During his vacation, Dalyn rents a small boat from a rental service that charges a flat fee of $50 plus $20 per hour (including taxes).
The total charge comes to $150, which equation can be used to calculate the number of hours, X, that Dalyn rents the boat?
A 20x + 50 = 150:5 hours
B20(x + 50) = 150.5 hours
C 50x + 20 = 150:4 hours
D 30(X + 10) = 90.4 hours