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- The revenue per month earned by the Couture clothing chain at timetisR(t) =N(t)S(t),whereN(t) is the number of stores andS(t) is the average revenue per store per month. Couturereleases a statement to their investors saying that currently they have 50 stores with a total revenueof$7,500,000 and expect to increase the number of stores by about 2 stores per month and increasetotal revenue by about$250,000 per month. What does this statement imply about the current rateof change of the average revenue per store per month?"Ex+y=∫-1.51.5x fx dx+∫-1.51.5y fy dy=∫-1.51.5x11.5--1.5dx+∫-1.51.5y11.5--1.5dy=∫-1.51.5x13dx+∫-1.51.5y13dy=13∫-1.50-xdx+∫01.5xdx+∫-1.50-ydy+∫01.5ydy=13-x22-1.50+x2201.5+-y22-1.50+y2201.5=13-(02--1.52)2+1.52-022+-(02--1.522+1.52-022=131.125+1.125+1.125+1.125=4.53=1.5" Could you write this part for a better understanding? Thank you.Condition y(0) = 3 Ans. e^-4t (3+t)