Three times the sum of 4 and a number y squared is the same as
the difference of 14 and the number y.

Cause of he different elevations  hope this ?

Mexico has a host of environmental problems, including significant chemicalpollution  from factory discharges and waste dumping, but the main threat to itsbiodiversity  probably stems from  deforestation  and other natural habitat losses. forest habitat is lost for a number of reasons