The mean mass of 11 players in football team is 65.2kg .The mean mass of the team plus a substitute is 65.4kg what is the mass of the substitute

Asilkworm winds its cocoon out of one long silk fiber. to make silk thread, 3 to 10 of these silk fibers are unwound from their cocoons and combined into aa single thread with a typical length of 300 yards. choose a reasonable number of silk fibers in a thread write an equation to find the total length of the silk fibersused in 300 yards of the thread

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83