The graph of a function never has two diferent points with the same x coordinate because

Two parallel lines are crossed by a transversal. what is value of x

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

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.