Could someone me plz i know it's easy one but i couldn't do it

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

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.

Which of the functions graphed below has a removable discontinuity?