Macaroni Salad

Ingredients

• Dressing
• 1 cup mayonnaise
• 2 tablespoons vinegar
• 1 tablespoon mustard
• 1 teaspoon sugar
• 1 teaspoon salt
• 1/4 teaspoon pepper
• 1/2 lb macaroni, cooked and drained
• 1 cup sliced celery
• 1/2 cup chopped green pepper
• 1/2 cup chopped red pepper
• 1/2 cup chopped green onion