Can somebody answer this ,i can't figure it out

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?

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

Find the x-intercepts for the parabola defined by this equation: y=-3x^2-6x+9