A second bag of 40 marbles contains 11 red marbles, 9 blue marbles and 20 green marbles. All the marbles from the two bags are mixed together.
Write down the ratio of marbles red: blue :green.
Give your answer in its simplest form.

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .