Question

yes but i dont know what ^ is

Answer 1

ok that simple means 28 squared, or 28*28

Answer 2

or raised to a power so 4^5 is \[4^5\]4 raised to the 5th power
this can also be represented as 4x4x4x4x4
where the ammount of 4's multiplied by each other are dependent upon the 5

Answer 3

ok i get it

Answer 4

ok i get it

Answer 5

do you mind, clicking good answer, so that i can receive a medal for the answers i have given :)