2.5 hours(2 hours 30 minutes) at 50mph means she travelled 150 miles during that time. 1.25 hours(1 hour and 25 minutes) at 62mph means she travelled 77 miles. You take the 2 answers, add them, and you have your total, the total is 150+77=227
The perimeter is the length of the outline of a shape. To find the perimeter of a rectangle or square you have to add the lengths of all the four sides.
