Answer
$T(x)=200 (\frac{0.93^x}{\ln 0.93})+CDVDs $
Work Step by Step
$t(x)=200(0.93^x)DVDs $per week
$T(x)=\int200(0.93^x)dx $
$T(x)=200 \int (0.93^x)dx $
Using the formula
$\int a^x=\frac{a^x}{\ln a}$
$T(x)=200 (\frac{0.93^x}{\ln 0.93})+CDVDs $
