Set it up into ratio or proportion
8/50 :: x/60
The answer would be B because the 100 stays in there and you are adding 8% per year. Hope this helps.
The slope would be:
-5--3/3-1
-2/2
-1
Slope = -1
The value would be 28,000*(1-0.0725)*(1-0.0725)*(1-0.0725)*(1-0.0725)*(1-0.0725)
which is 28,000*0,9275

which equals 28,000*0.6863=$19,219
The answer is 180 degrees.
A right angle formed at the edge of any circle will always create an arc of 180 degrees. This is true no matter where it is placed and no matter the side lengths.