What is the unit price of a quart of milk for $0.89?

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i