Aworker at a snack stand opened a new box of cups. the first day he used 30 cups , the second day the worker used 15 percent of the remaining cups. a total of 90 cups were used the second day. what was the original amount of cups in the box before any were used?

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.