Sakhi burns 4,350 calories hiking 15 miles of the Appalachian Trail. How many calories does he burn each mile?

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

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?