when the function of f(x) varies directly with X and f(x) equals to 51X equals 50 what is f(x) when X equals five

Identify the graph of y = ln x + 1.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two

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?