Please ignore the writing. but help me solve it please. its the second nintey level one.

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?

Hurry can a triangle can be constructed with angles measuring 115°,55°, and 20°? yes or no