Chapter 7 - Section 7.4 - Adding and Subtracting Rational Expressions with Different Denominators - Exercise Set - Page 517: 82

area: $\frac{6}{y(y-5)}$ perimeter: $\frac{10y-20}{y*(y-5)}$

area: $\frac{3}{y-5}*\frac{2}{y}=\frac{3*2}{y(y-5)}=\frac{6}{y(y-5)}$ perimeter: $2*(\frac{3}{y-5}+\frac{2}{y})$ $2*(\frac{3}{y-5}+\frac{2}{y})$ $2*(\frac{3*y}{y*(y-5)}+\frac{2(y-5)}{y(y-5)})$ $2*(\frac{3y}{y*(y-5)}+\frac{2y-10}{y(y-5)})$ $2*(\frac{3y+2y-10}{y*(y-5)})$ $2*(\frac{5y-10}{y*(y-5)})$ $\frac{10y-20}{y*(y-5)}$