If i have 42x1023 atoms of Xe how many grams do i have?

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.)

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4