If someone is able to do this please help! 21 points!

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Create a question with this scenario you could ask that could be answered only by graphing or using logarithm. david estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x.

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd