HELPMEEEEEEEEEEEEE

5 * 1/3= 5/3= 1.66666... which rounds to 167%.

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a. The probability of drawing a red then a green is 9/20 * 3/20= 27/400 and the probabiltiy of drawing a green then a red is 3/20 * 9/20= 27/400 so the probability of drawing a read and a green in any order is 27/400 + 27/400= 27/200.

b. The probabilty of drawing a blue then another blue is 8/20 * 8/20= 1/25. Order doesn't matter in this case because they are the same color.

c. I'm not sure...

d. If the first marble is green, the you replace it back into the bag meaning the probability of drawing a second green is 3/20.

This question is formated weirdly but the dimensions of the box are 12 by 20 by 8 inches on each side. The longest poster you can fit in the box is 20 in. You can't fit 23 in posters in the box so I don't understand the second part of the question. 

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If girls are 3/5 of the class, then 2/3 * 3/5= 2/5 of the total class are girls who wear braces. That means that 2/5 of the class are boys and 1/2 of them wear braces, so 1/2 * 2/5= 1/5. The total amount of students that wears braces is 3/5 of the class.

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If it takes 5 games to lose, that means you win the first 4 and lose the fifth so your equation is .3 * .3 *.3 *.3 *.7= .00567. That is the probabilty you lose by the 5th game.

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To get your unit rate, you divide 191 km by 4.5 hours to get 191/4.5= 42 4/9 km/hr.

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Yes, I agree. 

I'm thinking something along the lines of "Standardized testing has been used to analyze a student's comprehension of a subject but, it is becoming futile because it doesn't completetly examine a student's thinking." 

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It is certainly a powerful thesis statement but you need facts to back it up. I'm sure many schools teach things in their curriculum that will appear on standardized exams.