If 5/12 is subtracted from 5, what is the difference?​

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

Arestaurant offers delivery for their pizzas. the total cost the customer pays is the price of the pizzas, plus a delivery fee. one customer pays $23 to have 2 pizzas delivered. another customer pays $59 for 6 pizzas. how many pizzas are delivered to a customer who pays $86?