-15/5 = -3
15/(-5) = -3
15/(-5) = -3
(-15)/(-5) = 3 (because if a negative divides a negative, it becomes positive)
10 dimes
The $2 are exchanged for 10 dimes and 4 quarters, which make 14 coins total.
My belief is that km is smaller than m so 3.6km is less than 3600m i hope my answer helps you in some sort of way
It's a isosceles right angled triangle




Just follow this operation.
Find the two perfectly squared factors the multiple to your number.
Take the square root of those perfect factors then multiple them.