Help please!! Show work too Solve any that you can

Solve each triangle. Round your answers to the nearest tenth.

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

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?