The population of trout in a certain pond doubles every year. the current population of the pond is 275 trout.

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

Atheater wants to build movable steps that they can use to go on and off the stage. they want the steps to have enough space inside so they can also be used to store props. how much space is inside the steps?

3x + 4y = 5 x- 3y = -7 solve by substitution