(Select Multiple) Select the following numbers that cannot represent the area of a polygon.

68
40
-5
sq root 30
0
-200

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)?

Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section

Idon't get undoing if its pass adding and subtracting so can someone ? x-2 over 5 = 18