Aweather balloon holds 2,850 cubic meters of helium. the density of helium is 0.1685 kilograms per cubic meter. how many kilograms of helium does the balloon contain? round your answer to the nearest whole number. only enter a numerical value in the answer blank.

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

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

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!