Answer:
75 oz / 1 month, 17.308 oz / 1 week
Step-by-step explanation:
baby = 12 oz
1 year = 57 lbs
1 lb = 16 oz
difference between 1 year and birth = ( 57 lbs ) * 16 - ( 12 ) = 900 oz
growth rate = 900 oz / 1 year --> 75 oz / 1 month --> 17.308 oz / 1 week