Answer:
C. 
Step-by-step explanation:
Recall: SOHCAHTOA
Thus,

Reference angle = 28°
Adjacent = 15
Hypotenuse = 17
Plug in the values

The answer is c. Because you subtract 5 from 15 because you are dividing (if you were multiplying you would addition)
Answer:
12
Step-by-step explanation:
so its at 12 visits because its their lowest common factor so i think it should be 12
2 and 3
negative numbers won't work, nor will 0
1 and 2 won't work because 1*8=2*4
2 and 3 is the answer