If the diameter of a circle is 8.5 kilometers, find the circumference of the circle to the nearest tenth.
a. 13.4 kilometers
b. 26.7 kilometers
c. 39.4kilometers
d. 53.4 kilometers

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)?

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?

What is the average diastolic blood pressure for adults