Step-by-step explanation:
It is given that, three oil tankers together contain 37 5/7 litres of oil.
Total volume of oil is 
If two tankers have 11 3/14 litres and 12 3/7 litres of oil.
Oil in first tanker is 
Oil in second tanker is 
Oil in first and second tanker is :
Noo, oil in the third tanker = total volume - (Oil in first tanker + second tanker )
Hence, this is the required solution.
Answer:
firm deposit is $1667.50
Step-by-step explanation:
given data
buys 12 file = $140
time = 90 days
interest = 3%
solution
we get here return on money over 90 day period is
we know Return on 360 days = 3%
return on money over 90 day = 3% ÷ 4 = 0.75%
we consider here required amount = x
so
$140 × 12 = x (1+0.0075)
x = 
x = 1667.50
so firm deposit is $1667.50
Well if you are looking for the profit margin we need how much is was when she bought it, because it doesn't say, you can't say It's a increase or a decrease, so you could say this is a investment.
But considering you put this under mathematics I assume there is more to this question you forgot to post.
Answer:
15m=-23
Step-by-step explanation:
