Answer:
30 Pencils
Explanation:
If Patrick has 2 pencils, and Phyllis has 7 more than him, phyllis has 9 pencils.
But Phyllis has 12 less pencils than Nadine, we can find how many pencils Nadine has by adding 7+12=19
Nadine has 19 pencils
Now we add these all together
2+9+19= 30
All together, they have 30 pencils.
Hope this helps! Have a great rest of your day! :)