Its a little complicated, so I cant rlly explain it on here. But yes, 2 questions can have more than one solution. Like how theres a problem in a story, but theres plenty of solutions to solve it.
There are 1000 millimeters in a meter and 0.001 meters in a millimeter
Answer:

Step-by-step explanation:
The given statement is "I think of a number, add seven then divide by five".
Let the unknown number be x.
Now, add 7 to the number = x+7
If we divided them by 5,
.
So, the required algebraic notation is
.
10. is f 11. is a I dont know for 12 though