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Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

Which table represents a linear function? i'll give brainliest to first answer ^'^

Fa bus driver leaves her first stop by 7: 00 a. m., her route will take less than 37 minutes. if she leaves after 7: 00 a. m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?