Nadia needs half of a dollar for bus fare. which amount is equivalent to her bus fare?

How many days was the temperature above 90 degrees?

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)?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?