98% confidence interval for a porportion is found to be (0, 47, 0, 53). What is the sample proportion?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Need asap. solve for the following inequality

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2