Fill `0.09%=......%`

Fill in the blanks (1)3:4=(......)% (2) 0.75=( .....)% (3) 6%=.......(express in decimals) (4) If x decreased by 40% gives 135 than x =......... (5) (11% of x)-(7% of x)=18 = x=......

What is the value of 0.9+0.09+0.009+... equal to?

What is the difference between 0.9 and 0.9% ? 0.9 और 0.9% के बीच का अंतर है ?

The density of a solution containing 13% by mass of sulphuric acid is 1.09 g..mL . Calculate the molarity and normality of the solution.

Atmospheric air has 78 % N_(2) , 21 % O_(2) , 0.9 % Ar and 0.1 % CO_(2) by volume. What is the molecular mass of air in the atmosphere ?

Simplify : 0.9+0.9xx0.9÷0.9-0.9+0.9÷0.9xx0.9