What is the order from the narrowest to the widest graph of the quadratic functions

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

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 domain of the of the exponential function shown below?