Answer:
Option A - [tex](-20.16) + (-3.9)=-24.06[/tex]
Step-by-step explanation:
Given : Expression [tex](-20.16) + (-3.9)[/tex]
To find : What is the value of the expression ?
Solution :
Step 1 - Write the expression
[tex]=(-20.16) + (-3.9)[/tex]
Step 2 - Applying symbol rule i.e. multiplication of positive into negative is always negative, [tex](+)(-)=(-)[/tex]
[tex]=(-20.16) -3.9[/tex]
Step 3 - Solve
[tex]=-24.06[/tex]
Therefore, The value of the expression is [tex](-20.16) + (-3.9)=-24.06[/tex]
So, Option A is correct.