Which expressions are equivalent to  4(3j+(-(3j+(−4))−94, left parenthesis, 3, j, plus, left parenthesis, minus, 4, right parenthesis, right parenthesis, minus, 9 

Find an equation of the line perpendicular to the graph.

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

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.