I believe it would be negative three (-4) since the lines are thinner however; there is a chance they are skip counting by 2. In that case the answer would be negative six (-6).
I really wish i could help but i forgot how to do this
For one you have to find the circumference of the which is 3.14 times diameter then divide 5280 which is a mile by the circumference that would be the answer
for two you have to take 1920 which is the 80 times 24, then take the circumference of the earth and divide it by 1920
8/21 is the answer to the question
