What are the phenotypes and genotypes of parental pairs of guinea pigs, if their offspring had 25% smooth and 75%

What are the phenotypes and genotypes of parental pairs of guinea pigs, if their offspring had 25% smooth and 75% curled pigs. Write down the genotypes of the parents and the first offspring.

The ratio of 25% smooth and 75% curled guinea pigs in the offspring indicates that the curled coat is determined by the dominant gene, and the smooth coat is a recessive trait. Such a splitting is possible if the parents are heterozygous, that is, they have both a dominant and a recessive trait in the genotype.
If we denote a wavy coat – A, then a – smooth wool. The genotypes of both parents are Aa. The offspring among the teddy pigs will have genotypes AA and Aa, and smooth-haired ones will have only genotype aa.