I have memorized facts about fractions like these, so can tell you ...

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A fraction with 9 as a denominator is a repeating 1-digit decimal with the decimal digit being the numerator of the fraction.
A fraction with 11 as a denominator is a repeating 2-digit decimal with the two digits being 9 times the numerator of the fraction.
1/8 = 0.125, so any multiple of 1/8 is that multiple of 0.125.
Less than 2 = z < 2
Less than or equal to 8 = z ≤ 8
z ≤ 8
z < 2
How many of each color bottle and how many colors
-6+3=-3
-6-3=-9
so -3 and -9