15. If one apartment requires 36 square yards of carpeting, how many square yards of carpeting do 25 identical apartments require?
A. 936 square yards
B. 900 square yards
C. 27 square yards
D. 61 square yards
16. Gina decided to order some clothes from a catalogue. She ordered 3 pairs of jeans at $39 each, 4 T- shirts at $15 each, and 2 skirts at $27 each. What was her total bill?
A. $177
B. $117
C. $231
D. $192
17. What is the correct way to write three hundred nine million, fifty-eight thousand, three hundred four?
A. 309,58,34
B. 395,834
C. 309,058,304
D. 390,580,304