A cockatoo costs $159.95. A cockatiel costs $48.85. What is the difference in price?
2 answers:
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Answer:
The answer is option B.
Step-by-step explanation:
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Answer:
a - b = 12
Step-by-step explanation:
Given
= 12 ← factor the numerator
a² - b² ← is a difference of squares and factors as
a² - b² = (a - b)(a + b)
Thus
= 12
Cancel the common factor (a + b) on numerator/ denominator, thus
a - b = 12