The sum of two non-negative numbers is greater than 18, and their difference is less than 1. Find the system of inequalities.

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?

The graph shows the amount of money noah earned based on the number of lawns he cut. which list shows the dependent quantities in the graph?

15 oranges weigh 3.75 kilograms (kg). if each orange weighs approximately the same, approximately how much does each orange weigh?