Mason asked 280 7th and 8th graders in his school about the number of clubs they belong to. • 150 of the respondents were 8th graders.
• Twice as many 7th graders belonged to one club as no clubs.
• 10 fewer 7th graders belonged to more than one club than no clubs.
• Twice as many 8th graders belonged to one club as more than one club.
• 56 respondents did not belong to any clubs.

Find x to the nearest hundredth place

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.)

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180