Question

Solve it fast...... ​

Answer 1

Answer:

1 is the answer is this question

Answer 2

Answer:

(A) 1.

Step-by-step explanation:

let x=0.9 bar ––1

10x=9.9 bar ––2

subtract 1 and 2

10x-x=9.9 bar-0.9 bar

9x=9.0

x=9/9

x=1