Can you please help me answer A and B

a. no because if x is a negative number squared it will be positive.

if x = -3 and y = 2

then x ≤ y is true

but when you square -3 and 2 you will get 9 and 4

so x ≤ y is a false statement.

b. yes the argument is valid and yes my answer is dependent on my answer in question (a)

hope that explains it, good luck!

4,5,6,7

Step-by-step explanation:

-1 < x ≤7 ,  x > 3 means that 3 < x ≤ 7