hi someone help me with this.

i’m supposed to put numbers in order from least to greatest and i’m not too sure on it.

the numbers originally:
8,-5/2(fraction), -6, 1.4, -2, ^4(squared), 3, ^8(squared)

i converted -5/2 to -2.5, ^4 to 2 but is 2^2(it’s squared) right for ^8?

sorry if this is long and is confusing i can’t english today