Ilive on the 15th floor of an apartment building. my friend, emily, comes to visit me every saturday. last year she would always ride the elevator to the 7th floor and walk up the rest of the way. this year she rides the elevator to the 9th floor and the walks the rest of the way. why does she do this? (additional clue: on rainy days she rides the elevator all the way up to the 15th floor).

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

The function show two sisters' savings account and the rate at which they plan to deposit money

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?