Write an exponential function y=ab^x whose graph passes through the points (2,24) and (3,144)

Can somebody me out with this question

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?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie