To estimate a tip of 15% Amy tips one dollar for every six dollar in the total bill is this method reasonable why or why not

What statement is true? 2x^2-9x+2=-1

Explain how you divide powers with like bases.discuss why the bases have to be the same.how are these rules similar to the rules for multiplying powers with like bases.

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days