The cost of admission to a history museum is $3.25 per person over the age of 3; kids 3 under get in for free. If the total cost of admission for the warrick family, including their two 6-month old twins, is $19.50 find how many family members are over 3 years old

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step-by-step explanation:

step-by-step explanation:

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answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11