Write the base- ten number for (2x1)+(7x1/2)+(5x1/100)

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

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If you answer 2+2 you will get over 80 points