Select the table that represents the ratio of white pentagons to red pentagons.

Table B represents the ratio of white pentagons to red pentagons i.e., 3:4.
In mathematics, a ratio indicates how many times one number contains another.
The ratio of white pentagons to red pentagons = 3:4
(Since there are 3 white pentagons for every 4 red pentagon, the ratio of white pentagons to red pentagons is 3:4.)
The table that represent the ratio 3:4 is the right one.
It is B.
[tex]\frac{White}{Red} = \\\\ \frac{21}{28} =\frac{3*7}{4*7} = \frac{3}{4}\\ \\ \frac{33}{44} =\frac{3*11}{4*11} = \frac{3}{4}\\\\\frac{39}{52} =\frac{3*13}{4*13} = \frac{3}{4}\\ \\ \frac{57}{76} =\frac{3*19}{4*19} = \frac{3}{4}[/tex]
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