The sum of Mrs. son's age and her age was 70 two years ago Q's age was 5 less than twice her son's age . Write a system and solve to find their ages (write in ( , ) form)

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000