19. evaluate sqr rt 7x ( sqr rt x- 7 sqr rt 7) show your work.

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?

Given the functions, f(x) = 2x^2 - 1 and g(x) = 5x, find f(g(x)) and g(f(

Write 37/22 as a decimal rounded to the nearest hundredth.