Patricia pays $1.19 each to download songs to her mp3 player, if n is the number of downloaded songs, which equation represents the cost c in dollars?

a. c=1.19n
b. n=1.19c
c. c=1.19/n
d. c=n+1.1

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

What is negative 3/9 times negative 2/8 ?