Answer:
z=16
Step-by-step explanation:
-7(z-6)= -70
combine -7 with the bracket
-7z + 42 = -70
-42 -42
-7z = - 112
divide both sides by -7
-7z/-7 = -112/-7
z = 16
check
-7(z-6)= -70
-7(16-6)= -70
combine
-112+42= -70
-42 -42
-112 = -112
Answer:

• For parallel line, their gradients are the same:
→ m = ⅓
• From general equation of a line;

• For the point (9, -1):

therefore:

Answer:
21=3/7
Step-by-step explanation:
if you divide 21 by 7, you get 3. if you multiply 7x3 or 3x7, you get 21
The answer would be b that is bc you answer is decreasing. As you x increase.