Choose the system of equations which matches the following graph: a. 3x − 6y = 12 9x − 18y = 36 b. 3x + 6y = 12 9x + 18y = 36 c. 3x − 6y = 12 9x + 18y = 36 d. 3x + 6y = 12 9x − 18y = 36

List the 10 possible samples (without replacement) of size 3 3 that can be obtained from the population of five officials.

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

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1