Step 1: Calculate the totals for each part. Since Simon is traveling 55 miles per hour, you want to multiply the number of miles by the number of hours.
55 mi * 4 = (50* 4) + (5 *4) = 200 + 20 = 220
65 mi * 3= (60*3) + (5 *3) = 180 + 15 = 195
After finding the products, add them together to find the total.
220 + 195 = 415
So, the answer is 415 miles!