If the point (3/5 , 4/5) corresponds to an angle 0 in the unit circle, what is the tan 0?
edit: i don't know how to do the zero with the line through it on the keyboard

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?  

What is the explicit rule for the sequence in simplified form? −1,−4,−7,−10,−13… an=4−5n an=−4−3n an=2−3n an=−6−5n

The product of 3 and a number increased by 8 is 31