Frequency table shows the distribution of 1200 students at a high school. to the nearest percent, what percentage of females are freshmen or sophomores?

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.

Which of the following circles have their centers on the x-axis? check all that apply.

Write as a product of two polynomials. 2(3–b)+5(b–3)^2