Can someone please answer this Please mike can walk 128 km in 16 hours. what distance can he walk in 3 hours

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.

What is the frequency of the sinusoidal graph?

Find the value of x. round the length to the nearest tenth