On a service elevator, Layke can choose to go to 1B or 2B (basement floors). He can also choose floors 1 through 27. He sees there is no 13th floor (due to superstition). What percentage of the floors are in the basement?

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

If 25% of y is 30, what is 60% of y?

Why is studying fractions important