Which system of equations is equivalent to the system of equations shown? 2x - 4y = 12 3x - 5y = 20

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?

The police chief wants to know if the city’s african americans feel that the police are doing a good job. identify the management problem (i.e dependent variable) and identify the independent variable.

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great