Me ayudarían a saber cual es el resultado
sen2 x + tan x - 1?

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?  

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?