Answer:
y - 2x = 12 and x - 2y = -18

Answer:
555 minutes
Step-by-step explanation:
Answer: -279
Step-by-step explanation:
-129-150= -279
to check
-279+150= -129
Answer:
For example, 16/21
Step-by-step explanation:
Are there choices?
There is an infinite number of numbers between any two numbers.
2/3 = 14/21
6/7 = 18/21
One example of a fraction between 2/3 and 6/7 is 16/21
16/21 is between 2/3 and 6/7.