For each equation, determine whether x and y are directly proportional (that is, if the equation shows direct variation). If so, then find the constant of proportionality (the constant of variation).

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

Which expression shows the sum of the polynomials with like terms grouped together

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.