Does a quadratic equation always have two real solutions? That is, does a parabola always interseet the axis twice?
If possible, draw an example of a parabola that only intersects the x-axis once.

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?