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Physics, Flat mirror equation.? 40mg of compound X4O10 contains 22.5mg of O, what is the atomic mass of X? How can i get local treasury exam reviewer? Prove that if p|n and q|n, them pq|n. Every integer n>1 has a prime factor? Do these equations represent a proportional relationship? A) y=7x-3 yes or no
B y=150x yes or no
C) y=x yes or no
D) y=x+3.75 yes or no?