Sound travels about 11000 feet per second about how many miles away is lightning if 10 seconds pass from the time you see lightning until you hear thunder?

Sound travels 11000 feet EACH second, so in 10 seconds, it travels (10)(11000) = 110000 feet.

To find out how many miles this is, divide by 5280 -- the number of feet in one mile.

110000 divided by 5280 is about 20.8 miles.

The only number less than 8 that can equal 12 would be 6, 36 is the dividend