Simplify the radical expression. Show all your steps. √363−3√27

I NEED HELP WITH THIS PLEASE:,)

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint

Which answer choice is it? is it the first ,second, third or fourth giving 40 points for whoever answers correctly you

Cheryl works as a hotel maid. the number of hotel rooms she cleans is directly proportional to the number of hours she works. the graph shows that r rooms are cleaned in t hours.