How many terms are in the expression?

4x + 3y + 7z + 5

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The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Standard deviation of 19,29,21,22,23

What is 1.5% of 120 or what number is 1.5% of 120