Factor completely 4x3 + 8x2 − 25x − 50. (2 points) select one: a. (4x2 − 25)(x + 2) b. (2x − 2)(2x + 2)(x + 5) c. (2x − 5)(2x + 5)(x + 2) d. (2x − 5)(2x + 5)(x − 2)

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.)

The measure of an angle is 117°. what is the measure of a supplementary angle?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?