What is 18.194 rounded to the nearest tents hundredths and ones

Which expression gives the area of the triangle shown below

Write an algebraic expression for the word expression the quotient of c and 8

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?