What is the square root of 56

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?

What ia the sum if the first 7 terms of the geometric series

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.