Answer:
raw material inventory turnover = 4.42 
number of days sale in raw materials inventory = 21.97
Explanation:
given data 
beginning inventory = $930 million
ending inventory = $880 million
purchased raw materials  = $3,956 million
used raw materials  = $4,006 million 
solution
we get here first raw material inventory for turnover that is 
raw material inventory turnover =  ..............1
    ..............1 
here average raw material inventory =  
 
average raw material inventory = $905 million
so from equation 1 
raw material inventory turnover =  
  
raw material inventory turnover = 4.42 
and 
now number of days' sales in raw materials inventory will be as 
number of days sale in raw materials inventory =  × 365   .............2
  × 365   .............2
put here value 
number of days sale in raw materials inventory =  × 365
  × 365
number of days sale in raw materials inventory = 21.97