Please help with the question below

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

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.

Drag the tiles to the correct boxes to complete the pairs. label each function. as even , odd, or neither.