The mean age of 3 women in an office is 30 years old. The mean age of 7 men in an office is 33 years old.
What is the mean age (nearest year) of all the people in the office?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

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.