shopkeeper m sales some goods 2n and makes as profit of 15% and resales 2p at lose of 5% .if p pays a birr of 13.11 .how much did me pay for the goods ?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

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?

Can someone tell me if this is perpendicular? !