For the first question, the answer would be 280 miles. This because 200 ÷ 5 = 40, so if you take seven you can split it into 5 and 2. We know that for every 5 inches there are actually 200 and for 2 inches it would 80 miles. Simply add them togeather to get 280.
The answer to the second question would be 24 because 6 x 8 = 48, so 3 x 8 = 24
LOL I think that this is correct XD