Between 1400-1600 european kingdoms and city-states grew in power and wealth because of a commitment to the policy of

a. socialism
b. capitalism
c. isolationism
d. mercantilism

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

they are best known for the cliff pueblos found throughout arizona, new mexico, colorado and utah. and for their development of desert farming.

hope i

-lavira: )