Answer:
520 miles
Step-by-step explanation:
since 4 is half of 8, you just multiply 260 by 2.
6 plus 6 is 12 then 12 plus 3 is 15 then 15 plus 3 and 3 is 21 then we do 21 plus 4.2 is 25.4 plus 3 is 28.4 hope this helps
find the least common multiple of 25 and 30, which is 150
so they will flash at the same time every 150 seconds which equals 2.5 minutes