The annual enrollment of a university for the last nine years is recorded in the table. Year 1 2 3 4 5 6 7 8 9
Students (thousands) 9.5 8 8.5 7.5 6.5 6.5 8.5 8.5 9
What quadratic function best models this set of data?

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?