Which of the following statements shows the inverse property of addition?

y + (-y) = 0
y + 0 = y
1y = y
y + y = 2y

Irene bought 3 yards of fabric and a spool of thread for $28.10. if the spool of thread cost $1.25, how much did the fabric cost per yard?

Which answer is the solution set to the inequality |x|< 9? a. x< -9 or x> 9 b. x> -9 and x< 9 c. x> -9 or x< 9 d. x< 9 and x< 9

Can any one me with the answers to these questions asap?