A bag contains eleven red marbles, seven blue marbles, nine green marbles, and thirteen yellow marbles. Which of the following statements is not true?

a. The theoretical probability of selecting a red marble from the bag is 27.5%.
b. The odds of selecting a yellow marble from the bag are 13 to 27.
c. The theoretical probability of selecting a blue or green marble from the bag is 2/3 .
d. The odds of selecting a red or blue marble are 9/11 .

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.