National Bank advertises an intrest rate (in decimal form) of 0.12 if your initial investment is 500 and you want to acumalte $900 in intrest, how many years do you need to invest

It will take 15 years for $500 to yield $900 at an interest rate of 0.12

Step-by-step explanation:

Simple Interest equals Principal times Rate times The time in years,

That is SI = P*R*T

SI is $900

P = $500

R = 0.12

T i.e. Time is unknown

T will be equal to SI divided by P*R

i.e., T = SI/PR

T = $900/$500*0.12 = 900/60

T = 15 years.

Therefore, it will take $500 investment to yield $900 interest in 15 years at an interest rate of 0.12

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation: