Respuesta :

Answer:

640

Step-by-step explanation:

10 x 8^2

10 x 64 = 640

peacefrvr

Answer:

10b^2 = 640

Step-by-step explanation:

All you have to do is substitute b for 8.

10 (8) ^2

so 8 x 8 = 64

10 (64) = 640

Hope this helps :)

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