What is the denominator of the simplified expression? (2n/6n+4)(3n+2/3n-2)

What is the celsius temperature that is equal to 94 degrees fahrenheit using the formula f=9/5 c+32

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?

Ingredient c: 1/4 cup for 2/3 serving or ingredient d: 1/3 cup for 3/4 serving which unit rate is smaller