The scale is a representation of what the drawing is to real life. The drawing will tend to be represented by a fixed figure such as 1 cm. In this case for every cm of drawing it is a representation of 8 millimetres in real life, therefore the drawing is bigger than the object.
Answer:

Step-by-step explanation:
Given

Required
Show on a number line

Divide through by -2


Add 1 to both sides


Divide through by 3

<em>See Attachment for number line</em>
Answer:
x=10
Step-by-step explanation:
2x/5 = 4
2x=5×4
x=20/2=10
B is the answer I think is correct
Subtract the one value from 180 and then divide that number by 2 to get the 2 values. So if one side is 90, they other sides would be 45 each