Three years from now Tom will be twice as old as Jean and two years ago the sum of their ages was 26. How old is Tom now?

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?  

Ateam has p points. p = 3w + d w = wins d = draws a) a football team has 5 wins and 3 draws. how many points does the team have?

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?