Answer: 
Step-by-step explanation:
Given
The highest temperature recorded is 
The lowest temperature recorded is 
The amount of change between the high and the low temperatures is

Step-by-step explanation below.
Answer:
b.
Step-by-step explanation:
4x + 2(y – 1) = 0
The variables are all of unit degree so it is linear.
Answer: 104
Step-by-step explanation:
Answer:
x≥72
Step-by-step explanation:
Put into an equation then solve.
x/8≥9
x8 x8
x≥72
Hope that helped!