Which values represent solutions to cos(pi/4-x)=2squared/2 sin x, where x € [0,2pi)?

In each bouquet of flowers, there are 2 roses and 3 white carnations. complete the table to find how many roses and carnations there are in 2 bouquets of flowers.

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?

Simplify this expression. 8x 16(x + y)