An employment agency specializing in temporary construction help pays heavy equipment operators $136 per day and general laborers $81 per day. If thirty people were hired and the payroll was $3970, how many heavy equipment operators were employed? How many laborers?

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