9. What does "piece + piece = total” mean?
1 answer:
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Ángulo agudo es aquel que mide menos de 90º
Answer: to make 78 copies it cost 26 dollars.
Step-by-step explanation:
18 copies - 6 dollars
78 copies - x dollars
Hence,

15x1000+4x100+9x1
I belive that is edpanded notation.
Answer:
1 1/3
Step-by-step explanation:
m = y2-y1 over x2-x1
Answer:
5 inches
Step-by-step explanation:
add all them and divide by 5.