The density of a quartz crystal is 2.6 g/cm3. If it is hit with a hammer and breaks into 2 pieces of equal size, what will be the density of each piece? A 2.6 g/cm3
B 5.2 g/cm3
C 1.3 g/cm3
D It is impossible to determine the densities without measuring the mass and volume of each piece separately

the answer is

c. parental

due to the fact that it skipped a generation we can tell it is definitely not a dominant trait, therefore it must be recessive. i think this is right let me know!

explanation:

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)