two friends argue over who brushes their teeth more often. to settle the argument, they keep track of the number of morning and nights they brush and calculate a probability. these are shown in the table. who is more likely to brush both morning and evening? assume all events are independent.

Find the slope and the y-intercept if there's one and the equation of the line given these two points( 3, 2) and( 3, -4)

Which expression is the factorization of x^2+10+21

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?