Rewrite the radical as a rational exponent. the cube root of 2 to the seventh power a. 2 to the 3 over 7 power b. 2 to the 7 over 3 power c. 221 d. 24

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?