Answer:
B
Step-by-step explanation:
70-20=50
i don't sure correct or not
Answer:
yesyes
Step-by-step explanation:
<em>CA </em>⁻¹ is undefined because there are more columns in <em>A </em>⁻¹ than there are rows in <em>C</em>.
Answer:
They're not parallel, because 4x and 12x are not the same slope
