Alexis Purchased two Colors of wildflowers the blue flowers cost one dollar for each package and the pink flowers cost two dollars for each package how many packages of each flower did Alexis buy if she paid $14 for a total of nine packages of wildflowers I need to find two equations

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).