Why did the Anglo settlers in Texas become concerned about the actions of the Mexican government following the Fredonian Revolt?

As a result of the Fredonian Revolt, the Mexican government began to pay closer attention to the activities of the Texas colonies (which were predominantly made up of Anglo settlers). The Mexican government, in an effort to regain control of the area, began to impose more rules and regulations on the settlers. This concerned the Anglo settlers because up until now they had pretty much been left alone to live and govern as they pleased. They were worried the Mexican government would place more limits on their rights and freedom.

Explanation this is the possible answer I did it on edge.

the answers is b.   environments.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69