Number 4 should be 390,000 hope everything is well!
Step-by-step explanation:
12 large vases and 6 small vases you divide 11 by 142 and you get 12
Use the special triangles ratio.
If it is a 45-45-90 triangle, the sides are
and 7
I think it is a 30-60-90 triangle though. This gets you 14 and