Kristen has been earning $150 per week by babysitting. she has been working hard to save 20% of each week's earnings. if she continues to save the same amount each week, how many weeks will it take her to save $180?

What is the upper quartile in the box plot?

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.

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?