Which of the following is equidistant from a given directrix and focus? a. a locus of points called a circle b. a locus of points called a hyperbola c. a locus of points called a parabola d. a locus of points called an ellipse

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?