The answer would be 43.96 for 3.5 hours because for each hour it's 12.56
Answer: 
Step-by-step explanation:
Sine uses the ratio, 
so we can plug in the information we know. since there is no current value for the opposite side of angle A, we can just use a variable to replace it.
You can't reduce this any further because there is an unknown variable.
13000-5600=7400...that's about it, just multiply then subtract
You dont have a picture so idk the answer but its most likely E if thats an answer choice.
