Answer:
All children will have genotype Ww and phenotype widow's peak.
Explanation:
Widow's peak (W) is dominant over no widow's peak (w). So,
WW, Ww = widow's peak
ww = no widow's peak
Female = homozygous dominant = WW
Male = homozygous recessive = ww
WW X ww :
W W
w Ww Ww
w Ww Ww
All the children will have genotype Ww and phenotype widow's peak.