z varies directly with x and inversely with y. When x = 6 and y = 2, z = 15. What is the value of z when x = 4 and y = 9?

Ralph's shirt company sells t-shirts for $7.50 each with a flat rate of $10 for shipping. Frank's t-shirt company sells t-shirts for $10 each with free shipping.

The radius of each semicircle in this composite figure is 1 in. 2 in. 4 in. 8 in.

Use the distributive property to write an equivalent expression: - 8 (n+7)

Find the volume of the solid. When appropriate, use π = 3.14 and round your answer to the nearest hundredth

Mr. Cole plans to tile the new sun room he built for his wife Betty. The area of the room measures 320 sq. feet. If the length of the room measures 20 feet, what is the width of the room? A. 12 B. 16 C. 35 D. 80

The Chinese system presented in the text has symbols for 1 through 9, and also for 10, 100, and 1000. What is the greatest number expressible in that system?

Convert each measure to degrees. Round answers to the nearest hundredth if needed. a.) π/9 b.) - 2π/3

Include sales tax 6% an inn charges $265 per night. find the cost before taxes

A law firm has five senior and six junior partners. A committee of three partners is selected at random to represent the firm at a conference. What is the probability that at least one of the junior partners is on the? committee?

Find the circumference of each circle with the given radius or diameter. Round to the nearest tenth. Use 3.14 for T. d = 14.2 mm