PLEASE ANSWER ASAP!
Stacy is installing an air conditioner in her attic office. The office is in the shape of a square pyramid with a height of 10 feet. The length and width of the office are each 24 feet. Which is the volume of air in Stacy's office that the air conditioner must cool?
A.960 cubic feet
B.1,056 cubic feet
C.1,920 cubic feet
D.2,880 cubic feet

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

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).

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0