If Bill can buy 3 pairs of jeans and 2 shirts for $69 or 2 pairs of jeans and 3 shirts for $66, how much does one shirt cost?  Answers.
A) $10
B) $12
C) $13.20
D) $15
E) $16.80
Let the price of one shirt be ss and of jeans be j:   3j+2s=69   2j+3s=66   Subtracting the second from the first gives: j−s=3or j=s+3 Plug j in either of the equations and solve for s, which is $12   Answer: $12	.
<result>B</result>
If Bill can buy 3 pairs of jeans and 2 shirts for $69 or 2 pairs of jeans and 3 shirts for $66, how much does one shirt cost?