A store sells packages of comic books with a poster. A poster and 3 comics cost $11.75. A poster and 10 comics cost $18.75. Write a linear function rule that models the cost y of a package containing any number x of comic books.

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2