Jonny has 10 bottles of soap he takes away 9 bottles how much bottles does he have left

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?  

It says factor each expression 49x-28?

Afootball is throw by a quarterback to a receiver