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Lethality in Mexican hairless breed of dogs

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Hairless condition in Mexican hairless breed of dogs is heterozygous [Hh] against the normal homozygous recessive [hh]. Puppies homozygous for H allele are born dead due to abnormalities in mouth and absence of external ears. If the average litter size at weaning is 6 in matings between hairless dogs, what is the expected number of hairless and normal offsprings at weaning from matings between normal and hairless dogs?

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Hh - heterozygous hairless
HH - homozygous abnormal
Hh - homozygous ...

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