Determine the values of a for which the system has no solutions, exactly one solution, or infinitely many solutions. X 2y - 3z

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

step-by-step explanation:

infinity is the answer

this seams to be a multiple choice question, state the options below.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).