Answer:
b < 16.5
Step-by-step explanation:
b - 9.5 + 9.5 < 7 + 9.5
b < 16.5
hope this helped :D
Answer:

Step-by-step explanation:

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Answer: +/- 7
Step-by-step explanation:
3x² = 147
To solve for x divide through by three first.
3x² = 147
x² = 49, now we take the square root of both side by trying to apply laws of indices.
√x² = √49
The square root will neutralize the effect of the square because
√a = a¹/² so (x²)¹/², and (x²)¹/² =
x²×¹/² = x, therefore the solution is
x = +/- 7.