The radius of a water molecule is about 1.4 angstroms. One angstrom is 0.00000001 cm. What is the diameter of a water molecule in centimeters?

Connor wants to use the Fermi process to estimate the number of oranges that would fill his kitchen. As part of the process, he needs to estimate the volume of a typical orange. The diameter of an orange is about 3 in.

Armando read 20 pages of his 200-page book in 4 hours. At this rate, how long will it take him to read the entire book?

You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on constructing a confidence interval; however, you are not sure how many citizens should be included in the sample.

Find the value of A if the 4-digit number 3A5A is divisible by both 3 and 5.

The basic sticker price on Mr. Feldman's new car was $3200, The options he desired cost an additional $1800. What percent of the total price was made up options?

Solve for t. - t = 9 (t-10) - t=9 (t-10)

What is the diameter of a circle with a circumference of 66? Round to the nearest tenth.

Which equation represents a line that is perpendicular to the line graphed? A) y = 3 B) x = 1 C) y = - 3 D) y = 3x + 1

A pineaple is 7 times heavy as an orange. The pineaple also weighs 870 grams more than the orange. What is the total weight in grams for the pineapple and orange?

11. If a = 0.3 and b = 0.9, then ab2 = ? A. 0.0729 B. 0.09 C. 0.243 D. 0.27 E. 0.81