How do I calculate the 20th generation and find out when it reached 1?

Question: For both visual and blind predators, estimate what p will be by the 20th generation. If p > 1, then at what generation was 1 reached? (p cannot exceed 1, which represents 100% of alleles). Hint: This can be calculated using the equation of the line.

Question: With both visual and blind predators, allele frequencies changed documenting that the bean populations were not in Hardy Weinberg equilibrium. Initially, p and q were both 0.5, but then the allele frequencies changed. Did the genotype frequencies also change? With both visual and blind predators, compare genotype frequencies for generation 1 and 2.