A family has 35 dollars to spend on dinner. They spend 18 dollars on entrees. Side dishes are 3 dollars each. What is the greatest number of side dishes they can buy?

After spending $18 on entrees, the family has $35 − $18 = $17 left. At $3 per side dish, they can buy 5 dishes for $15; a sixth would cost $18, which is too much. The greatest number is 5 side dishes (choice B).

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