Respuesta :

Answer:

Easy

Step-by-step explanation:

4m a second so 40 seconds cause4 x 10

Answer:

im not sure

1398100 meter

Step-by-step explanation:

4+4^(2)+4^(3)+4^(4)+4^(5)

+4^(6)+4^(7)+4^(8)+4^(9)

+4^(10)=1398100