The sign of the product of –35 and –625 is (positive, negative, zero)
The sign of the product of 263 and 0 is (positive, negative, zero)
The sign of the product of –21 and 451 is (positive, negative, zero)
The sign of the product of –350 and 89 is (positive, negative, zero)

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.

It says factor each expression completely 8y+48

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?