Four friends are going to split the cost of a pizza. if p stands for the cost of the pizza, which of the following expressions could represent what each friend will pay?

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?