Determine if the conclusion follows logically from the premises. Is this a valid or invalid argument?

Premise: If an animal is a rodent, then it is a mammal. Premise: Rats are rodents.
Conclusion: Rats are mammals.

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Can someone me with the property questions for 12 13 and 14 plz