Si martin necesita un préstamo de 10 000 solrs ¿cuanto de interes pagaria en la entidad con menor tasa de interes? ​

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 table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

I’m stuck on this equation, anyone got the answer?