Ihave 10and4/5 of cake batter to split among 18 cupcakes. how many cups of batter will i use for each cupcake

Need solving this second acceleration problem.

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.

Breana is selling tickets to a choral performance. on the first day of ticket sales , she sold 3 senior citizen tickets and 1 child ticket for a total of $38. breana took in $52 on the second day by selling 3 senior citizen tickets and 2 child tickets. what is the price of a senior citizen ticket?