- -, - - . 40%. . .
- 50 / - d =-100…-350 . – d1 = -10…-15
1 - -650/6000 ; 2 - ; 3 - -3000 -2/620; 4 - -1/150; 5 - -1/200; 6,7,8 - 147; 9 - .
– 2 .