[填空题]
The values of the funf;t)( 0jclzs n: k-b ptr8v *kt4yogd4ctions f and g and their derivatives for x=3 and x=7 are shown in the follp4rv tk-4o*dykg 8b: towing table.
Let h(x)=f(x)g(x).
1.Find h(3)=- .
2.Find the equation of the normal to h when x=7.
y=-$\frac{a}{b}$x+$\frac{c}{d}$ ; a= ,b= , c= , d= .