Our life teaches us so many lessons, but in my I have learned that "No one dares to stay with me if I show my another" and I like it at least I could be safe cheaters

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What expression is equivalent to 1/2(2+3x-6)

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Which of the following best describes the delian problem?