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Answer:
See explanation
Step-by-step explanation:
There 2 black shapes (one circle and one square) and 2 white shapes (1 circle and 1 square).
1. The ratio of the number of white shapes to the number of black shapes is 2:2=1:1.
2. The ratio of the number of white circls to the number of black squares is 1:1.
3. The ratio of the number of black circles to the number of black squaress is 1:1.
4. There are 4 shapes and 2 are circles (1 white and 1 black), so circles are [tex]\dfrac{2}{4}=\dfrac{1}{2}[/tex] of all shapes.