Plz answer them all

1.) 4 and -4.

2.) 1.25 and -1.25

3.) 2 1/4 = (I dont have any absolute value signs on my keyboard but its

2 1/4  with absolute value signs.

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!

1^3 + 2^3 + 3^3 +4^3 = (1+2+3+4)^2

step-by-step explanation:

i am only able to answer the first part. i am not sure about the second part. sorry