A car travels at a constant speed of 56 miles per hour. How far will it travel in 45 minutes and 45 seconds?

56/60 to get mile per min.

56/60*45 to get miles traveled in 45 min.

50/60/60 to get mile per sec
50/60/60*45 to get miles traveled in 45 sec.

add the amount of 45 min and sec together to get final answer.