Pls help will mark BRAINLIST I promise pls

5500 dollars is placed in an account with an annual interest rate of 6.5%. to the nearest tenth of a year, how long will it take for the account value to reach 19700 dollars?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost