I had homework on this today lol
First, add 2 to both sides. It would then be 5x = 3x + 10. Then subtract 3x from both sides and you would end up with 2x = 10. Divide 2x by 2 and the 10 by 2. The answer is x = 5.
1000m equals 1km so 600m equals 0.6km.
I think it might be the last one. Hope it helps:)
15% of 40 = 6 so I’m guessing it would be 6
