John and Mary work at different restaurants. John earns $8.00 per hour, and Mary earns $11.00 per hour Graph the functions that show each of their earnings per hour

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?