Arectangular picture frame measures 42 cm by 14 cm what is the perimeter or distance around the picture frame in meters

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

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?

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.