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If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?

What is the solution to the system of equations? y=1.5-3 y=-x