<h2><u>
Answer:</u></h2>
Natalie has a total of <u>40 marbles.</u>
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<h2><u>
Step-by-step explanation:</u></h2>
If 4 of Paiges' marbles are green, then we would write this as the ratio
<u>4:16</u>, or <u>1:4</u>
This means that for every green marble she has, she has 4 total marbles
Therefore, if Natalie has 10 green marbles, we would multiply this by 4 to get a total of <u>40 marbles.</u>
summation from k equals 1 to 5 cosine k pi
= Cosine 1*∏ + Cosine 2*∏ + Cosine 3*∏ + Cosine 4*∏ + Cosine 5*∏
= -1 + 1 + -1 + 1 + -1
= -1
$12.50 is how much it would cost during the sale.
The answer would be C. Obtuse Iscosceles