HELP PLEASE ITS DUE IN 30 MINUTES The Music Express is going to buy music bundles

HELP PLEASE ITS DUE IN 30 MINUTES The Music Express is going to buy music bundles from a company that is going out of business. The company charges different amounts for bundles of pop and rock music:
Using your Equations from part A, The Music Express has $72,000 to spend on the music bundles. If it buys more pop than rock bundles, how many bundles of each type of music can The Music Express buy while getting closest to the budget of $72,000? Explain.
The equations i wrote for part A is 1200p+300 for pop music
and 950r+250 for rock music
The question for part a is The Music Express is going to buy music bundles from a company that is going out of business. The company charges different amounts for bundles of pop and rock music:
Cost for each pop music bundle is $1200
Cost for each rock music bundle is $950
One - time fee for rights to the pop music is $300
One - time fee for rights to the rock music is $250.
Write an equation that represents the total cost for pop music bundles. Write another equations to represent the total cost for rock music bundles. Identify the variables in the equations.
PLEASE HELP AND WHAT ARE THE VARIABLES