D. A cluster tells you where there is a concentration of data values.
a quarter is 1.75 mm thick
1 mm = 0.0393701 inches
0.0393701/12 = 25.4 mm per inch
25.4/1.75 = 14.5 quarters per inch
14.5 x 12 = 174 quarters per foot
174 x 0.25 = 43.50
$43.50 for a foot of quarters
It is 9
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The slope is -2. In context to this problem, the candle will burn away 2cm of its length every hour.
3 should be added to the tiles
