Respuesta :

mitchamaustyn15

Answer:

-140

Step-by-step explanation:

-10+(-40)+(-90)

-10+1(-40)+1(-90)

-10-40-90

-90-40-10=-140
You should use PEMDAS
Parenthesis go first
Exponents
Multiplication
Division
Addition
Subtraction
In this case you would add -40 + -90 and -10
= 140