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#33180

money

word problem

equations

medium

90 sec

Sarah buys pens and notebooks. Each pen costs $2.00 and each notebook costs $4.00. She spends a total of $30.00. If $p$ represents the number of pens she buys and $n$ represents the number of notebooks she buys, and she buys 4 notebooks, how many pens did Sarah buy?

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.