All of the following expressions are equivalent except . x - 7
7 + (- x)
7 - x
- x + 7

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

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

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?