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In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8