What is the probability of drawing a yellow marble out of a bag twice in a row if there are eight other marbles in the bag, making it a total of ten marbles? You would put the marble back into the bag after the first draw and before the second one

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?