Jace drives 60 miles per hour. If Jace drives for 4 hours straight, take a 30-minute break, and then drives for another 9 hours straight, how many miles will he travel?
Jace drives a total of 4+9 = <T>add(4, 9)=13 hours.
Jace will travel 60*13 = <T>multiply(60, 13)=780 miles.
