( 3 - 4i ) + ( 6 + 7i )

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?

Aline passes through 3,7 and 6,9 what equation represents the line

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c