Which expression have a quotient of 3/4?

What term makes it inconsistent y=2x - 4

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?