Stacy buys 3 cds in set for $29.98 .she saved $6.44 by buying the set instead of buying the individual cd's .if each cd costs the same amount , how much does each of the 3 cd's cost when purchased individually?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?