Luca goes to report the theft of his wallet immediately in a very crowded subway. He recalls that before leaving the house he had counted the money and that he had € 520 in all; he also knows that he had € 50 and € 20 banknotes and that the number of banknotes of the second type were 2 less than those of the first. Luckily he had put half of the € 50 bills in the inside pocket of his purse, thus saving them from theft. How many banknotes of each type did he has and how much money did he manage to save?

Need solving this second acceleration problem.

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).