What is the result of subtracting the second equation from the first?
-4x-2y=-2
x-2y=9

49xy +34y - 72z. determine the degree of the polynomial

Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m