Answer:
-0.3, -0.12, -0.03, 0.15
Explanation:
-0.3 is the least because 0.3 = 0.30 and 0.30 is greater than 0.12, -0.12 is the second one because it is 0.12 behind 0 and is greater than -0.03. 0.15 is the last one because it is the only positive number therefore is the greatest one.
really hope this helps and isn't confusing but I'm pretty sure this is correct!