You have $37 to spend at the music store. Each cassette tape costs $10
and each CD costs $13. Write a linear inequality that represents this
situation. Let x represent the number of tapes and y the number of CDs.

You can only spend $37 dollars, so the total amount you spend needs to be less than or equal to $37. The amount you spend on tapes is equal to the cost per tape, $10, multiplied by the number of tapes you buy, x - so it's represented by "10x." The amount you spend on CDs is equal to the cost per CD, $13, multiplied by the number of CDs, y - so it's represented by "13y." Adding these two amounts gives you your total, which must be less than or equal to $37. Putting it all together, we get: