Macy bought some records. She spent a total of $45 after a discount of $11 off of her total purchase. Each record cost $8. How many records did she buy?
Select an equation that could be used to answer the question above. Let r represent the number of records.
8r - 11 = 45
45r - 11 = 8
11r + 8 = 45
8r + 45 = 11