$8 less than half of the cost of a camera, is the same price as a stereo. if the stereo cost $169, find the cost of the camera .

Which of the binomials below is a factor of this trinominal? x^2-13+30

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.