Kaylie is making miniature stairs for her model of an office building. How much plaster does she need?

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

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

What is always true when two whole numbers are subtracted?