Answer:
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Step-by-step explanation:

Multiple properties of equation.
Answer:
17
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
Let the unknown number be = x
Then,
x + 16 = 34
=> x = 34 - 16
=> x = 18 (Ans)
Due to the nature of spheres, they are all similar to each other.