Answer:

Step-by-step explanation:
<em>The given options are not in anyway related to the question. So, I will do away with them.</em>
Given


Required
Determine the linear relationship
Let
y represents the total cost
x represents the number of shirts
The relationship between x and y is:

This gives:


B and C are both correct
t(s) is equivalent to the temperature of the tea after s amount of seconds
Based on the picture, we know that ED is equal to DB. Therefore:
2 times ED=EB
2(10)=20
EB is 20
Answer:
x is 3.
Step-by-step explanation:
Vertically opp angle are equal.