Please help me!

Which number is a solution of the inequality?

y > 1.9

A. -9
B. -2
C. 2
D. 1.9

2. Which number is a solution of the inequality?

x + 4 < 7

A. 2
B. 3
C. 4
D. 5

3. Which number is a solution of the inequality?

6 > z(10-z)

A. 0
B. 1
C. 2
D. 3