Factor by grouping
2ab– 3a + 8b – 12

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at __ link to graph: .

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827