Answer:
± 2
Step-by-step explanation:
let the number be n , then
n² - 4 = 0 ( add 4 to both sides )
n² = 4 ( take square root of both sides )
n = ± = ± 2
The number is - 2 or 2
Your annual clothing bill went up from $677.15 last year to $783.17 this year. What is your annual percent of increase from last
1 answer:
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