Solve the thing; I need the perimeter and area for both and the final answers

How to do this , and can some one explain

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

M the table below represents a linear function f(x) and the equation represents a function g(x): x f(x)−1 −50 −11 3g(x)g(x) = 2x − 7part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points)part b: which function has a greater y-intercept? justify your answer. (4 points)