The government of mexico is a federal republic. what does this mean?
a. separate states can govern themselves
b. government is under one central authority
c. separate states unite under one government
d. a single person has power in the government

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

not sure might be he acquired the entire oregon territory from great britain

a. favoring native born americans over immigrants.

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.