Respuesta :

Answer:

a) 7600, 8000

b) 10500, 11000

c) 9400, 9000

d) 900, 1000

Step-by-step explanation:

Rounding......

a) 7600 and 8000
b) 10 500 and 10 000
c) 9400 and 9000
d) 1000 and 1000

I hope this helps :)