An all day parking meter only takes dimes and quarters. if it contains 100 coins with a total value of $14.50, how many of each type of coin are in the meter?

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?