Help please I need to pass

How do i do this? i don’t understand

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me

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?