Suzie paid a total of $324 for x tickets to a rock festival how much did each ticket cost? write your answer as an expression

Ineed i been stuck on this question since yesterday

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

The volume of the a sphere whoes diameter is 18 cm is cubic cm . if it's diameter were reduced by half, it's volume would be of its original volume