Answer:

Step-by-step explanation:
The formula for this equation is

a is the final result
p is the starting amount (deposited)
r is the interest rate
n is the number of times it's compounded
t is the time
because it says compound annually and it's after 2 years both t and n equal 2. I rounded a for you, but if you don't need it rounded here it is: 3863.345117
Please double check me I may be wrong, this is my second time doing these type of questions
(8/9)^2 is 64/81. Exponent is 2. Hope this help
Answer:7.939
Step-by-step explanation:
-5m^2 = -125
m^2 = 25
m = SquareRoot (25)
m = 5
Equation has real number solution.