Answer:
C. R = 17.9 degrees
Step-by-step explanation:
We have a rectangle triangle with the adjacent side and the opposite side (neither of which are the hypotenuse).
The relation between those elements is the tangent:

So, to isolate the angle, we modify the formula as such:

If we round 17.87 degrees to the tenth... we get 17.9 degrees.
Answer: 14. Explanation: If you start off with 74 and need the sixth term, simply subtract 74 by 10, six times.
Answer: 92
Step-by-step explanation:
So 12 +80 = 4(3 + 20) = 92