A baby blue whale weighed 3 ton at birth. Ten days later, it weighed 4 tons. Assuming the same rate of growth, which equation shows the weight w when the whale is d days old?

A. w=10d+3

B. w=10d+4

C. w=0.1d+3

D. w=d+10

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The sum of the product of a non-zero rational number and an irrational number is always?

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