Please help me on this

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense