The greenhouse effect is the
a. movement to reduce pesticides.
b. hole in the ozone layer.
c. increase in earth temperature due to trapped gases.
d. decrease in earth temperature due to escaping gases. select the best answer from the choices provided

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation