Answer:
Allan has to travel at 60mph if he wants to make the delivery before a break.
Step-by-step explanation:
when you think about it, speed is measured in miles an hour or mph so you have to figure out the speed in miles per hour that he will have to travel, its as simple as dividing 1200/20=60 becuase that gives you the miles per hour seeing how many times 20 can go into 1200.
