Which equation shows an example of the associative property of addition? O (-7 + 1) + 71 = -7 + (i + 71)
O (-7 + 1) + 7i = 7i + (-7i + 1)
O 7ix (-7i + 1) = (7i - 7) + (711)
O (-7i+ 1) + 0 = (-7i+1)

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.

Which one is true about the hexagons ?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11