What is the degree of 2x^3+4x-10x^4+8

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

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