Solve the given differential equation by undetermined coefficients. y''' − 3y'' + 3y' − y = x − 5ex

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?  

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.