Twice jack's age plus 5 is 21. write and solve an equation. how old is jack?

Which statement about perfect cubes is true

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

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?