Please answer that and help me!! I’ll give you brainliest if u answer it good.

The current area of the circle is 81π in².

They want to " 'decrease' " the radius to 9 in.

First, find the current radius for the current circle.

Areas of circle = πr²,

81π = πr²

First, divide π from both sides of the equation:

(81π)/π = (πr²)/π

r² = 81

Isolate the variable, r. Root both sides of the equation:

√(r²) = √(81)

r = √( 9 * 9) = 9

The radius currently is 9 in.

The NBA is not making any changes at all, therefore the question will be void. (Note that the other answer choice is -9, however, you cannot have a negative measurement, therefore, the answer is voided).

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wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.