4.9 x 10^8 = 490,000,000
Hope that helps.
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D. 12
~ More than 30 - 39 pledges.
7 + 4 + 1 = 12
Answer:
8 cookies and 28 cupcakes
Step-by-step explanation:
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× 
Use the formula (n - 2) * 180 to find the sum of the interior measures of a polygon.
n stands for the number of sides that the polygon has, so substitute 10 for n since a decagon has 10 sides.
(10 - 2) * 180, start by solving inside the parentheses and subtracting 10 and 2.
(8) * 180, multiply.
B. 1,440 is your answer.
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