Every year, Liberty High School holds a relay race during a field day. If y represents the winning time for the relay race in seconds and x represents the number of years after 2000, then the equation y=−0.09x+12.94 can be used to model the winning times in the relay race at the Liberty High School field day after 2000. According to the linear model, what was the winning time in the relay race in seconds at the Liberty High School field day in 2007?

12.85 seconds

12.31 seconds

12.22 seconds

12.04 seconds

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.