Donald has a spherical ornament. he knows that the surface area of the ornament is equal to 4 times the product of and the square of the radius of the ornament. donald measured the radius of the ornament and found it to be 5 inches. if a represents the surface area of the ornament, then which of the following equations can be used to calculate the surface area of the ornament?

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problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

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answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.