Question (a)
The relationship between satisfaction score and salary is a positive one. The graph shows a positive correlation. It means, the higher the salary, the higher the satisfaction score
Question (b)
We will substitute the value of

into the equation

Question (c)
The constant 0.0005 is the increase of satisfactory score by 0.0005 for every pound increase in the salary
Answer:
14,400
Step-by-step explanation:
multiply all variables when doing perimeter
Scale factor: f=0.5
AB=2.2
LM=?
LM=f x AB=0.5 x 2.2 →LM=1.1
The length of LM is 1.1
They sold them with a 60$ markup
50$ + 60% = 80$