Square root of 55x^7y^6/11x^11y^6 assuse x>0 and y>0

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Which best explains why this triangle is or is not a right triangle ?