Which expression represents the total perimeter of the pool edge? 12x2 + 15
20x2 + 25
12x2 + 8x + 25
24x2 + 16x + 50

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

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k