Which situation can be represented by the equation y = 30x + 100 ? (TEKS 7.7A-R)
A. mechanic charges $100 per hour to repair a car.
B. The rental cost of a jet ski is $30 per hour.
C. You have $100 in your savings account, and you deposit $30 per month.
D. A plumber charges $30 for a service call plus $100 per hour to repair a broken water pipe.