Answer: 
Step-by-step explanation:
Given
The temperature on Monday was 
By Tuesday, it becomes 
Change in temperature is the difference between the two temperatures.

Therefore, the change in temperature is
.
I am sorry i dont understand
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Answer:
(9+g)/f
Step-by-step explanation:
First you add 9 and g then it says "then divide f by the result" so it would come after addition and you have to divide the result by f so addition comes first so you should use () and put a division symbol by f
0.678
= 68%
68% of the students are taking math