Okay, so we're given a function for the cost of supplying bins. Toe p percent of the population on the cost is in dollars. So for a we want to find 15% of the population. So we're just gonna substitute 25,000 times 15 divided by 100 minus 15. 25,000 times 15 is 375,000. Have to divide that by 85. And we got 4411 point. Um, so it's 764 So I'm going to stop it. 76 So $4411 and 76 cents for 15% of the population. Be. We want to do the same thing for 50 now for 25,000 times 50 divided by 100 minus 50. So 25,000 times 50 gets us. Okay, 1,250,000 on divide that by 50. Mhm. It's We get 25,000 dollars for see, we want to do for 90% of the population. So 25,000 times 90 divided by ah, 100 minus 90. Okay, so 25,000 times 90 iss 2,250,000. We want to divide that by 10. Now, just get rid of a zero. So we are left with $225,000. Um, last, but at least they want us to grab this function, using some kind of graphing utility and being sure to choose an appropriate viewing window. You have to explain that. So I'm using does Mouse. So I typed N y equals 25,000 p divided by 100 minus p. And then I just drag my screen toe, find a window that I like. Um, so this is the window that I like. I definitely want to make sure that we have 0 to 100 showing as well as the majority of the curve. If I was to zoom in too much more, I don't really see too much of that curve. I don't see it past 80 uh, to even so I just shrink it so I can see more of it. Okay, but I don't need to go. So what does that look like? My Y values are, um, increasing by 200,000 to see most of this. And I stop just a little bit after ah 100. That 110 or so because I do see a little piece of the graph beyond 100 poking out. So while that might be interesting for us to see graphically, it's not necessarily important for our example, because, uh, they gave to us on an interval from 0 to 100 not including 100. We could see why we're not including 100 because the graph doesn't exist at 100. Um, there's an ass until here. And if we look back at the question, we would end up dividing by 100 so that would have worked out.