Which of the following Help

Helo
expressions have a negative product?
Choose ALL the correct expressions.
9. 10
-6.7
11. (-2)
-5. (-5)
-3. (-4)
-8.8

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?