Pls help will mark brain

All per-unit concepts rely on ratios, meaning, to provide a type of measurement

Draw a tape diagram to represent each situation. for some of the situations, you need to decide what to represent with a variable andre bakes 9 pans of brownies. he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students

Consider the function f(x)=-5x+3 what is f(-2)