There are 6 paintings on three walls of a room. if annart gallery has 13 such rooms, how many paintings are there in its collection?

Geometry: determine whether segment mn is parallel to segment kl. justify your answer. jm 6 mk 3 jn 8 nl 4

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?

Write the fraction or mixed number and the decimal shown by the model