If the perimeter of ab equilateral triangle is 18 cm , find it's area

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Geometry answer picture question pls . reason and statements

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