Answer:
The standard form of five and nine tenths is 5.9.
Explanation:
Given : Expression five and nine tenths.
To find : What is expression i standard form ?
Solution :
We have given a number in word form.
To write in standard form we have to convert word into number form.
Tenths mean
five and nine tenths means




Therefore, The standard form of five and nine tenths is 5.9.