There are nine questions that require a dictionary on today’s test.
Is it true that a cat has nine lives?
I made nine donuts.
This word follows the "number of things" pattern where there's a kanji for a number plus つ on the end. Whenever you see this, you know the word means "____ things." Knowing that, as long as you know the kanji (which you do) you can figure out what number of things it is. For this one, it's the kanji for nine plus つ. So, this one is nine things.
Since all of the "number of things" words all follow the same pattern (number plus つ), you really just have to remember the part before the つ (and then remember that the つ is in all of these). All of the readings are the kun'yomi reading, which means we'll have to use a mnemonic to remember them (you know the on'yomi reading of the kanji portion).
What thing do you have nine of? The nine things that you have are nine coconuts (ここの). Imagine yourself juggling nine coconuts in the air. Try counting them while you're doing this, arriving at nine things.