A certain store sold pens for $0.35 each and pencils for $0.25 each. If a customer purchased both pens and pencils from the store for a total of $2.00, what total number of pens and pencils did the customer purchase? Select the correct option:
A) 6
B) 9
C) 10
D) 11
E) 12
Answer: AAlgebraically, the question looks like this: 2.5 = 0.35x + 0.25yThere are six possible numbers of pens that fit that requirement:   1 pen: $0.35   2 pens: $0.70   3 pens: $1.05   4 pens: $1.40   5 pens: $1.75 and 1 pencils for $0.25 each. That's 5 pens and 1 pencils for a total of 6 pens and pencils. Choice (6) is correct.
<result>A</result>
A certain store sold pens for $0.35 each and pencils for $0.25 each. If a customer purchased both pens and pencils from the store for a total of $2.00, what total number of pens and pencils did the customer purchase?