Answer:
14
Step-by-step explanation:
64-8=56
56/4=14
Solve using trigonometry
tan(39)=24/b
b=24/tan(39)
so b=29.6
for c…
sin(39)=24/c
c=24/sin(39)
c=38.1
$56.65
55(.03)= 1.65
1.65+55= 56.65
All you gotta do is multiply the cm by 15,
For 13) you'd do

14)
15)

then for 16)
Just 1.
I hope this helps and have a good night! :D