Which statement is true? all quadrilaterals are parallelograms because they have 4 sides. all trapezoids are parallelograms because they have 1 pair of parallel sides. all squares are parallelograms because they have 2 pairs of parallel sides. all polygons are parallelograms because they have straight lines and closed sides.

Type the correct answer in each box. use numerals instead of words. the average number of subscribers to an online magazine each year from 2010 to 2015 is given in the table below. the average number of subscribers to the online magazine in 2010 was the percent increase in the average number of subscribers in 2011 to the average number of subscribers in 2012 was %. the maximum average number of subscribers to the online magazine in the years shown was

Identify the parent function that can be used to graph the function f(x)=3(x-9)2

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?