First, create 3 equations of the form ax+by+cz=d, where a, b, c, and d are constants (integers between – 5 and 5). for example, x+2y-z=-1. perform row operations on your system to obtain a row-echelon form and the solution

1 and 2

step-by-step explanation:

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

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step-by-step explanation:

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1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6