The experimental probability of a coin landing on heads is 7/12. if the coin landed on tails 30 times, find the number of tosses.

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?  

The graph shows the distance kerri drives on a trip. what is kerri's speed?

Which function has the domain x> -11