Answer:-126f-108
Step-by-step explanation:
9(-9f - 2)-9(5f +10)
-81f - 18 -9(5f + 10)
- 81f - 18 - 45f -90
- 126f - 18 - 90
-126f -108
which give you the answer -126f - 108
Answer: The quantity of the water received by each student = 3.75 liters.
Step-by-step explanation:
Given: Total water = 18.75 liters
Total students =5
If each student in the group used the same amount of water for their experiment, then the quantity of the water received by each student = 

The quantity of the water received by each student = 3.75 liters.
Answer:
Step-by-step explanation:
<u>Expression on the board :</u>

<u>Expression by the student </u>:
<em><u> Expression 1 </u></em>:

The expression 1 is equivalent to the expression on the board. Because the coefficients of x and y are same on both.
<em><u>Expression 2 :</u></em>
<em><u /></em>
<em><u /></em>
The expression 2 is also equivalent to the expression on the board. Because the coefficients of x and y are the same.
Answer:
13 1/2
Step-by-step explanation:
this is surely the answer. 13.5
Answer:
6) A. 5x+5
7) D. 0
8) A. 5x+5
9) I'm not sure sorry
Step-by-step explanation: