What is the solution set of {x|x< -3} intersection {x|x> 5}?

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7