Anybody know the awnser to number 4 and 5 please awnser fast if you know it

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

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?