The average sale of a house decreased from $317,000 in february, 2008 to $171,000 in february 2013. what is the absolute and the relative change?

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?  

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!