How Long Will Marijuana Be In The System Post Eating A Brownie With Marijuana?

I have not had any marijuana in my system in over 15 years new years eve dec 31 I ate a brownie with marijuana in it..approximately how long will it take for me to pass a urine test thank you
sorry doc but I am on disability for several reasons and at this time I cant afford the payment of 15 dollars sorry for wasting your time