The ratio Tangent is the opposite side over the adjacent side of the angle.
Tan (x) = 8/15
I truly don’t know the answer but i think it is 837 feet
The general Formula for a decreasing Annuity is:

For this example we have:
P = 78,000
n = 7*4 = 28
i = 8%/4 = 2% = 0.02
After substituting you can find value for R, rent.
Answer:
a) 10,61
Step-by-step explanation:
31/3 = 10,33333...
2/7 = 0,28571428...
10,33 + 0,28 = 10,61