To solve this problem you must apply the proccedure shown below:
1. You must apply the Law of Cosines, as you can see in the figure attached. Then:
- The first ship travels at
in for two hours. Therefore, the side
is:

- The second ship travels at
for
. Therefore, the side
is:

- Now, you can calculate
:

The answer is: 
Answer:
$0.32, so a quarter a nickel and 2 pennies
Step-by-step explanation:
(750m) - 1050 = b
1800 - 1050 = 750 dollars lost.
So (750m) - 1050 = b will give you the balance.