if i have 50ml of oil, which costs 4.39, how much would 10ml cost...

Question

a list of further math questions:

 

1-if i have 50ml of massage oil, which costs 4.39, how much would 10ml cost?

 

 

 

Answer 1

ml/cost: 50/4.39 = 10/x     Cross multiply

50x = 43.9

x ≈ $.88

 

Do them all the same way.