The Bells are adding a new room to their house. The room will be a cube with volume 6,859 ft3. They are going to put in hardwood floors, and the contractor charges $5 per square foot. How much will the hardwood floors cost?

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

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.

I’m still confused on how to work the percentages