Noelle always leaves of between 10% and 15% for the stylist when she gets her hair done. This can be represented by the system of inequalities shown below, where y is the amount of tip and x is the cost of the hair service. Which or the following is a true statement? y>0.1x
y<0.15x

A. When the tip, y, is $15, the cost of hair service, x, must be between $50 and 75.
B. When the cost of the hair service, x, is $50 the amount or the tip, y, must be between $5 and $7.50.
C. When the tip, y, is $10, the cost of the hair service must be between $100 and $150.
D. When the cost of the hair service, x, is $75 the amount of the tip, y, must be between $11.25 and $15.