Answer:
A
Step-by-step explanation:
-19-11 = -19 + (-11)
A large company wanted to know how the average salary of their employees had changed over the last year. the results of their study had a p-value of 0.12and showed that the average salary had increased by $1,500 from $20,000 to $21,500. The results were practically significant but not statistically significant.
-15+15 - 9y =39+15
-9y=54
y= -6