Answer:
1.44
25 - 3 x ^4
3
P.S. I do the K12 online schooling too and these answers were correct!
P.S.S Also I would do the super script 4 but I don't know how I only know how to do 1 2 and 3.
Press ctr shift and u at the same time and it should appear like this: U then enter one of the codes below!
1: 00b9
2: 00b2
3: 00b3
4: ????