Why is the texas governor's power exceptionally weak as compared to that of the governors of some other states? plural executive system tenure limits lack of a line-item veto inability to appoint any administrative heads?

The reason the Governor of Texas has less power than most governors is because of the plural executive system which distributes the governor's power to some elected officials. The vast majority of these officials are not appointed by the governor but elected by the populace. These elected officials do not answer to the governor nor do they have to work with the governor.

What the affect had to the people’s hearts and minds

Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160