The average of three numbers is 94. the average of four different numbers is 87. what is the weighted mean of all the numbers together?

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

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

The line plot below represents the number of letters written to overseas pen pals by the students at the waverly middle school.each x represents 10 students. how many students wrote more than 6 and fewer than 20 letters. a.250 b.240 c.230 d.220