The answer It’s 5 hope this helps !!
You don't have any systems listed here, but it is any that you can use both of those ordered pairs for. Below is an example:
x + y = -1
x - y = 5
81 beats per 1 min then 162 per 2 min
Answer:rises slowly floats steadily loses altitude rises auickly
Step-by-step explanation:
I did the question it's not that hard
