To make a certain salad dressing, the chef needs 3 parts oil to 4 parts vinegar. the ratio of oil to vinegar is 3: 4 what does the ratio 3: 4 mean

What is the area of the trapezoid shown ?

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.)

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