Answer:
x=12.5% (hope this right if not I am so sorry)
Answer Explanation:
let x%= annual interest rate
deposit = $800
interest earning period = 24 months = 24/12 years
interest earned = $200
so $200 = $800 * x /100* 24/12
200 = 800 * x/100 * 2
solve for x,
x = 12.5% per annum