Which strategy can be used to solve this problem?


Myrna bought some pens and some binders. Pens cost $2 each and binders cost $3 each. Myrna spent $14 for 6 items.


How many pens did Myrna buy?


A.

Translate into a number sentence.

Let n represent the number of pens Myrna bought.

(2 × n) + (3 × 6) = 14


B.

Make a table.


Myrna's Purchases

Number 1 2 3 4 5 6

Pens $2 $4 $6 $8 $10 $12

Binders $3 $6 $9 $12 $15 $18


C.

Guess and test.

Guess that Myrna bought 3 pens and 3 binders. Figure out what she would have spent on the 6 items. If this doesn't equal $14, try 2 pens and 4 binders. Figure out what she would have spent. Is this more or less than $14? Revise your guess, and test your answer again.

please need help!!!