1: 9 - z +3 - 2z =
2: n +5n=
3: 12c - c=
4: 9 - z + 3 - 2z

1:12−3z

2:6n

3:11c

4: 12-3z

Step-by-step explanation:

1:

9 - z +3 - 2z

(9+3)+(−z−2z)

12−3z

2:

n +5n

6n

3:

12c - c

11c

4:

9 - z + 3 - 2z

(9+3)+(−z−2z)

12-3z

Hope this helped

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5