One week a librarian kept track of whether returned books were returned on time or not, and whether they had fewer than 200 pages or they had 200 pages or more. the results are shown in the table.
what is the probability that a randomly selected book returned that week was returned on time, given that it had 200 pages or more?

returned on time
fewer than 200 pages—— 78
200 pages ir more ——116

returned late
fewer than 200 pages ——15
returned late ——31

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. another 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 would you choose and how much would you save with that choice? show calculator try it! if you buy 1000 ml bags, how many do you need to buy each month? type your answer in the space provided and click on the check answer button.

We just started the introduction into circles and i have no idea how to do this.

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1