A store sells pencils for $0.50 each and erasers for $1.00 each. If a student buys a total of 10 items for $6.00, how many pencils did the student buy?
A store sells pencils for $0.50 each and erasers for $1.00 each. If a student buys a total of 10 items for $6.00, how many pencils did the student buy?