U made kokichi cry ;(

Which of the binomials below is a factor of this trinominal? x^2-13+30

Given that abcd is a rhombus, what is the value of x?

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?