You want to create an id code for the students in your school based on three characters. the first and second characters must be a letter of the alphabet, and the third must be a digit between 1 and 9 inclusive. if repeat letters are allowed, how many such codes are there? (use the multiplication principle.) a. 2106 different codes b. 6084 different codes c. 61 different codes d. 44 different codes

Landon wrote that 3−2.6=4. which statement about his answer is true?

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.