Are my angles correct?

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

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl

3x + 4y = 5 x- 3y = -7 solve by substitution