The number of rooftops with solar panel installations in five cities is shown above in the graph, if the total number of installations is 27,500, what is an appropriate label for the vertical axis of the graph? All right, well, taking a quick look at the answers, they only differ and how the, the units are gradually increasing. So are they increasing intense? hundreds, thousands or 10s of thousands? All right, let's see which ones make the most sense. Okay, so we know the totals 27,500.

And each of these is each city. And each bar represents how many installations in some unit we don't know if it's 10,000 or what yet, but total if we add up the total for a to the total of the C And he, we should get something in the 27,027 and a half k, right? So if it's in the 10s, does that make any sense? Well, not really, because we're doing 90, essentially for a 90 plus 50 plus 60 plus 40 plus 30. No way, are you going to get to 27? All right.

What about in the hundreds? If it's in the hundreds, well, still he kind of really not getting anywhere. You're doing 900 plus 500 plus 600, so on and so forth. You're kind of still under about 3000. So you're still not there. You get close, though.

What about in the thousands? Okay, well, if I'm in the thousands, then I have 9000 plus 5000. For B. So I'm at what now I'm about 14,000 14,000 plus receipt, which is six, which gives me a 20,000. Okay, I'm very close. And for D, that's four.

So now I'm at 24. And finally for what seems to be about three and a half, he, so three and a half thousand plus 24 will give me like 27 and a half thousand. So actually, thousands do work perfectly. So we'll go with that