Arock has a mass of 210g and a volume of a 150 cubic centimeter what is the density of the rock

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

Which choice represents the sample space ,s for this event

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.)