find y and bc if b is between a and c ab=6y, bc=12y

To find the values of y, a, b, and c, we need additional information. The given equations, ab = 6y and bc = 12y, involve two unknowns: a and c. Without more information, it is not possible to determine the exact values of y, a, b, and c.

However, I can explain how to solve for y if you have additional information or constraints for the variables a, b, and c.