The average length of the eight words betty was asked to spell was 9 letters. the first seven words had the following lengths: 8 letters, 9 letters, 6 letters, 10 letters, 7 letters, 9 letters, and 11 letters. what was the length of the eighth word?

: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?

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.

What is the value of x? assume that the line is tangent to the circle.