If the required difference is 600 mi, lets start of counting by 10s and multiplying the current number 800-700 = 100 1600-1400 = 200 2400-2100 = 300 3200-2800 = 400 4000-3500 = 500 4800-4200 = 600 if 60 hours pass, they will be 600 miles away from each other. counting by 10 each time will help with problems like or similar to this.
Yeah bro just take the 2 and subtract on both side so the y is left alone flip the 100 so now its 001 divide it by 1 and the answer is 007 like the spy.
