tom need to buy ink cartridges and printer. each ink cartridges costs 30.00 dollars each ream of papers costs 5.00 dollars. he has 100 dollars to spend which combinations of ink cartridges and printers paper that he may purchase?

Answer 1

start with no ink
he can buy 20 reams of paper for $100
So, 0,20 is one pair of values.
Now, note that every ink cartridge costs as much as 6 reams of paper.
So, the other solutions are
1,14
2,8
3,2