Respuesta :

Answer:

40

Step-by-step explanation:

[tex]\approx 4\times10\\\approx 40[/tex]

Answer:

Depends on how many decimals you want. No decimals is 40, tenths place is 40.4, hundredths is 40.38

Step-by-step explanation:

4.12*9.8 is 40.376. So it depends on what kind of estimate you want...