Write two properties of right angled triangle​

Assume that a population of 50 individuals has the following numbers of genotypes for a gene with two alleles, b and b: bb = 30, bb = 10, and bb = 10. calculate the frequencies of the two alleles in the population’s gene pool.

Every time you drive you will experience a combination of driving conditions and environments.

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?