What is the remainder when 9712 is divided by 42

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

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?  

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)