A10 How many of the following statements are correct?
$20 \%$ of $40=8$
$2^{3}=8$
$3^{2}-1^{2}=8$
$7-3 \cdot 2=8$
$2 \cdot(6-4)^{2}=8$
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5

![](https://cdn.mathpix.com/cropped/2024_06_07_8c4ca9fb11cdb9201aa3g-3.jpg?height=429&width=480&top_left_y=228&top_left_x=1436)

km traveled
A10 Correct are 4 statements, since:

- $20 \%$ of $40=8$ is correct, because $0.20 \cdot 40=8$,
- $2^{3}=8$ is correct, because $2 \cdot 2 \cdot 2=8$,
- $3^{2}-1^{2}=8$ is correct, because $3^{2}-1^{2}=9-1=8$,
- $7-3 \cdot 2=8$ is not correct, because $7-3 \cdot 2=7-6=1$,
- $2 \cdot(6-4)^{2}=8$ is correct, because $2 \cdot(6-4)^{2}=2 \cdot 2^{2}=8$.


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