I am unsure how to this problem. Please help explain it to me.:

Jan has 288 tickets to sell for charity. She sells 2/9 of the tickets to her family and 1/3 of them to her friends.

How many tickets are sold to both her family and friends?

What is the measure of ac? 5 units 13 units 26 units 39 units

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet