Answer:
b
Step-by-step explanation:
Change 212,514 into 215,000.
Change 396,705 into 400,000.
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Estimate:
215,000 + 400,000 = 615,000
Therefore:
212,514 + 396,705 ≈ 615,000
Answer:
400 is the answer to the botom and a b c and d
Step-by-step explanation:
I don't really know if this is correct but I think it is x+y+z=14
Answer:
(3,0)
Step-by-step explanation: