Sue baked 3 pans of brownies for 10 friends. She cut each pan of brownies into 10 pieces. What equal portion of brownies did each friend get?

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

Which of the following parabolas opens down?