Quadratic and exponential word problems — Basic example | Math | SAT | Khan Academy

Watch Sal work through a basic Quadratic and exponential word problem.

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[subhasdh]

The trend goes
S0=2
S1=S0*0.97=2*97
Now S2 is 0.97 of S1 as it gains -3% of its costumer.
Then S2=S1*0.97=2*0.97*0.97
Now just follow the pattern.