Пожалуйста..........

Ответ:

Объяснение:

1) 4/7 x = 16

x = 16 : 4/7

x = 16 * 7/ 4

x = 28

2) 8/9 x = 2/9

x = 2/9 : 8/9

x = 2/9 * 9/8

x = 1/4

3) 7/8 = x/96

x = 7 * 96 : 8

x = 84

4) a/0,6 = 25/3

a = 0,6 * 25 : 3

a = 5

5) - 4 + ( - 7) + ( -8) = - 19

6) - 5/8 + ( - 11/12 ) = - 15/24 + ( - 22/24) = - 37/24 = - 1 13/24

7) - 1 + 0,546 = - 0, 454