193 is what percent of 256? Round to the nearest thousandth.

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.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?