3. 14 you can't round it it's already rounded
The order of these numbers from smallest to largest is:
(-1)2, -1 2/5, -1.4, (1/2)2
-1 2/5 and -1.4 are technically the same, though.
Go on desmos dot com; it lets you graph equations. Graph those and see which matches your picture.
Not really sure what you’re wanting here. If you need the formula it is 2 times the number of miles + 5 (2n+5)
there are 5 solutions. Or 4