Answer:4.25
Step-by-step explanation: you divide the cost by the materials I believe (I’m sorry if it’s wrong)
Use Pythagoras's theorem.

Now, minus 12 from 15:
15 - 12 = 3,
which you need to square.
So the length of a = 9cm.
You can also do:

Which gets 9.
Hope this helps.
Answer:
420 hg = __4200000___ cg
Step-by-step explanation:
<h2>please mark me brainliest</h2>
Answer:
49
Step-by-step explanation:
That would be 20/120 or reduced to 1/6, C.