What is the formula for the sum of two whole numbers is 72. the difference is 48 what are the two numbers

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

Find the ratios of the corresponding sides

The longer leg of a 30-60-90 trangle is 18