How much 7% saline solution should Kent mix with 60 cubic centimeters (cc) of a 19% saline solution to produce an 11% saline solution?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

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.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?