A onfluência alemâ nas construções formou oque chamamos de : (A) enxaimal.
(B)beiras.
(C)sobrados.

5×^2+20-15 or -(5x^2-20+15)

343^x = 49^4-xx = 4-xx+x=42x = 4x = 4/2x = 2therefore x = 2

The peak above is part of the  sierra madre occidentals ,  a chain of volcanic mountains that runs through the middle of central america. 

The scientist can conclude that there is a decrease in the natural resources due to human activities. because of innovation and modernization of the environment, then there goes pollution and other bad effects that destroys the natural resources.