A cannon ball is shot into the air and its height in meters is represented by 1.5+23.1t-4.9t^2 where "T" is time in seconds. How high does the cannon ball go?

Last saturday, the museum box office sold 281 tickets for a total of $3,954. adults ticket cost $15, and students ticket cost $12. how many of each kind of tickets were sold?

Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?

Two numbers have a sum of -19. one number is x. what expression represents the other number?