
<h2>
Explanation:</h2>
As I understand, in this exercise, we have the following numbers:

By using calculator, let's convert those numbers into decimal form:

So arranging from least to greatest we have:

Put another way:

Answer:
x=2, y=1
x=-2, y = -1
Step-by-step explanation:
x - 2y = 0
x = 2y
x² - y² = 3
(2y)² - y² = 3
3y² = 3
y² = 1
y = 1 or y = - 1
x = 2 or x = -2
Answer:
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Answer:
9 x 100 + 8 x 10 + 7 x 1000 = 7,980