A lamp originally costs $30 Krishna has a 5% off coupon for the lamp After the coupon a 5% sales tax is applied Will she pay more than $30 less than $30? 1. More than $30

2. Less than $30

3. Exactly $30

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?  

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)