90 x 0.4 = 36
90 - 36 = 54
The sale price is $54
Answer:
5.25 miles
Step-by-step explanation:
We are required to determine the distance between Lighthouse A and Lighthouse B in the diagram.
Using Law of Cosines

The distance between lighthouses is 5.25 miles.
Answer:
Er... um... huh?
Step-by-step explanation: