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Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

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

What are the soultion(s) to the quadratic equation 40- x^2=0