Which conclusion can be accurately made about one of the unknown elements based on the data? A. Element 1 is a metal because of its high density and high electrical conductivity.
B. Element 2 is a nonmetal because of its low density and low melting point.
C. Element 3 is a metal because of its high boiling point and low electrical conductivity
D. Element 4 is a nonmetal because of its high melting point and low density

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