Answer:
question 8: AB = 25 units
wuestion 9: CD = √89 o.r. ≈ 9.4339
explanations in image :)
The correct answer is B, $972,000 I just took the test.
Since you said angle, I assume you mean a triangle, so:
Take the number of the angles you have and add them, then, subtract it by 180. It gives you the missing angle of your triangle!
10 is the estimate because you have 58, and you put it in 589 10 times.
The exact calculations:
Principal, P=3000
interest rate = 33% per year
Period, t=10 years
Future value



Interest
= future value - principal
= 81337.92-3000
=
78337.92 (to the nearest cent)