Gene X Inheritance in Fruit Flies

In a recent genetic study, researchers were investigating the inheritance patterns of a newly discovered gene, dubbed Gene X, in a population of fruit flies. The allele for the dominant phenotype (red eyes) is designated as X^R and the allele for the recessive phenotype (white eyes) is X^w. If a homozygous red-eyed fruit fly (X^RX^R) is mated with a white-eyed fruit fly (X^wX^w), what percentage of the offspring would be expected to exhibit the dominant red-eye phenotype?