A company surveys every tenth person in the phone book. What type of sampling did the company use?

A. biased sample

B. self-selected sample

C. stratified sample

D. systematic sample

H/2 + 3 = 3 (h/4 - 1)

Three is two less than the product of a number and five

During one month, Jack, Bob, and Jerry earned a total of $115. If Bob earned twice as much as Jack, and Jerry earned $15 more than Jack, how much did each earn?

Over the course of 4 days the price of stock at Acme corporation fell $28. What was the average change in stock price per day?

5x+9=3 (4x-2) is equivalent to

A toy company produces rubber balls that have a radius of 1.7 cm. A sphere has a radius of 1.7 centimeters. What is the volume of one rubber ball? Round to the nearest hundredth of a centimeter.

What plot is used for data ordered smallest to the largest median

Solve the solution for y. Y-3x=13

The cost of paper varies directly with the number of reams bought. Suppose 2 reams cost $5.10. Write a linear equation that could be used to find the cost of x reams of paper. Find the cost of 15 reams of paper

What is 16231 divided by 23