Two boxes of pizza amount to $12 x 2 = $<<12*2=24>>24.
Two packs of juice amount to $2 x 2 = $<<2*2=4>>4.
Victoria paid a total of $24 + $4 = $<<24+4=28>>28.
Hence, she should return the $50 - $28 = $<<50-28=22>>22 to her mother.
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