Write a story that could describe the expression: −9−5x

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

What numbers are included in the set of integers? what numbers are not included?

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11