Respuesta :

Answer:

18.43

Step-by-step explanation:

3.1 + 17.43 - 2.1

20.53 - 2.1

18.43

PEMDAS

First, multiplication
3.1+(2.1 x 8.3)-2.1
A: 3.1+(17.43)-2.1

Second, addition since it’s the first one
3.1+(17.43)-2.1
A: 20.53-2.1

Lastly, subtraction
20.53-2.1
18.43

Answer -> 18.43