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Can anyone help me with this also pls answer the whole question right and I will give you a brainlyist

Can anyone help me with this also pls answer the whole question right and I will give you a brainlyist class=

Respuesta :

a) 16/40 reduces to 2/5 so 2/5 is correct
b) theoretically you would get heads up 20/40 times which reduces to 1/2