Find the area of the surface cut from the bottom of the paraboloid by the plane

Are carpet coast $15 per square metre. the total delivery charge is $21 peter buys n squared metres of carpet what is the expression which represents the total cost in $

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

This graph shows a portion of an odd function. use the graph to complete the table of values. x f(x) −2 −3 −4 −6