Answer=2/3
720/1080=72/108=8/12=2/3
720/1080=2/3
Answer:
Part A) 
Part B) 
Part C) 
Step-by-step explanation:
Part A) we know that
In the right triangle ABC of the figure the sine of angle A is equal to divide the opposite side angle A by the hypotenuse
so

substitute the values

Part B) we know that
In the right triangle ABC of the figure the cosine of angle A is equal to divide the adjacent side angle A by the hypotenuse
so

substitute the values

Part C) we know that
In the right triangle ABC of the figure the tangent of angle A is equal to divide the opposite side angle A by the adjacent side angle A
so

substitute the values

16n+8=4
16n=4-8
16n=-4
n=-4/16
n=-1/4.
Answer:12 hrs
Step-by-step explanation: $15 per hour -> $180/$15 = 12 hours
112.5 I believe is the right answer