The picture is upside down my dude, delete the question, re-upload it and ill help you out.
Answer:
4
Step-by-step explanation:
To know the scale factor here, just know that 16/4 = 4, and 8/2 = 4 too, so the scale factor is 4.
Just that the respective sides need to have the same ratio.
Note, if it was from B to A, it'd be 1/4.
Answer:
sale price = 408
Step-by-step explanation:
480 * 15/100 = 72
sale price = 480 -72 =408 (ans)
They are linear.
hope it helps goodluck
Answer:

Step-by-step explanation:
Given:
Each day M.r Cole used can of paint = 
Total number of days he used can of paint = 7
Questioned asked:
How much paint Mr. Cole used after 7 days?
Solution:
By applying unitary method:
M.r Cole used can of paint in one day = 
M.r Cole used can of paint in 7 days = 
= 
= 
Therefore, M.r Cole used
can after 7 days.