Fill in the blank to make an equivalent ratio
x : 3 = 40 : 15

So look at the patterns. 
How much bigger is 15 to 3? 
Answer = 5x bigger.
What is 5x smaller than 40? (in other words, 5 x ? = 40)
Answer = 8!

So, the missing 'x' = 8

Gggģcawrygr3ezt9d hu and the other countries have been working to make it easier to box up their homes in an area where the government has not yet decided which countries will have the option of the government

Ithink the answer is d.