Answer:
$528.12
Step-by-step explanation:
499-10
489×1.08= 528.12
Answer:
x=10
Step-by-step explanation:
Answer:
9(5x^3-1)
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Answer:
x = 2.
Step-by-step explanation:
The corresponding sides are in the same ratio (because they are similar).
So 5x / 5 = 4 /x
5x^2 = 20
x^2 = 4
x = 2.