I think it’s $1,209,000 ? (180,000x6.5 divided by 30)
Transitive property states:
If A = B and B = C, then A = C
In this case, 2 + 8 = 4 + 6 and 4 + 6 = 10. If you call A = 2+8, B = 4+6 and C = 10, using Transitive property you can conclude that 2 + 8 = 10