Is this problem false 5x – [7 - (2x - 1)] = 3(x - 5) + 4(x + 3)

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Need solving this second acceleration problem.

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?