If the interest rate on a savings account is 0.01%, approximately how much money do you need to keep in this account for 1 year to earn enough interest to cover a single $9.99 below-minimum-balance fee?

If your interest rate is 0.01 then to earn the nearly $10 balance fee from the interest rate, you will need at least $1,000 in your account.

IF your interest rate was yearly which mostly are so that's what i'm going to assume. Hoped it helped

Answer d; a supplementary angle = 180°, so if that angle = 150°, y would = 30°.