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Answer:
Step-by-step explanation:
Let x and y represent the cost of a cupcake and cookie respectively.
Given that;
Five cupcakes and two cookies cost $19.75.
Two cupcakes and four cookies cost $17.50.
Let's solve the simultaneous equation by elimination;
Multiply equation 1 by 2;
Subtract equation 2 from equation 3;
divide both sides by 8
Since we have the value of x, let substitute into equation 1 to get y;
therefore , the cost of cupcakes and cookies are;
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The formula for findong the area of a circle is
Using that formula, you would do pi(9). After that, multiply pi by 9 and you would get ~28.274. Hope this helps!
Using that formula, you would do pi(9). After that, multiply pi by 9 and you would get ~28.274. Hope this helps!