Which algebraic expression is a trinomial?
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The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Find the area of the regular hexagon if a side is 20 cm.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?