Which regular polygon can be used to form a tessellation? the sum of the measures of the angles of each polygon is given.

a) octagon; 1080°
b) nonagon; 1260°
c) triangle; 180°
d) decagon; 1440°

Ihonestly have no clue if it's each or none.

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

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?