Help in evaluating the integral

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

Compound inequalities. , i’m being timed

How many and of which kind of roots does the equation f(x)=x3−x2−x+1