Answer:
3 vases chipped.
Step-by-step explanation:
Let's use a ratio:
chipped : all
2 : 12
1 : 6
3 : 18
We can expect 3 out of 18 vases to be chipped.
You have to divide to find a common number. 143/13=11
1:11
A^2 + b^2 = c^2
12^2 + 17^2 = 485
so c^2=485
so c=22.0 inches
