Which domain restrictions apply to this rational expression? x^2+x+6/x^2+2x-3
Select each correct answer.

x≠3

x≠−1

x≠2

x≠−3

x≠−2

x≠1

At the movie theatre, child admission is $5.20 and adult admission is $9.70. on sunday three time as many adult tickets as child tickets were sold, for a total sales of $788.90. how many child tickets were sold that day?