A collection of nickels, dimes, and quarters totals $3.85. There are 45 coins in the collection. If there are 4 times as many dimes as quarters, find the number of nickels, dimes, and quarters in the collection.

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

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).