Yes they are proportionate
17% of 156 = 0.17 x 156
17% of 156 = 26.52
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Answer: 26.52
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Answer:
Step-by-step explanation:

Check:

81 - 36 = 45
45 = 45
Therefore, our answer, 9 is correct.
Hope that helps!
X² - 6x + y² + 4y = 86
Complete the square:
x² - 6x + (9) + y²+4y + (4) = 86 + (9) + (4)
→(x - 3)² + (y + 2)² = 99
Center: (3, -2)
radius: √99 = 3√11