X/11 = 30/55 solve the porpoation

Which of the following statements about closure is false? A. Polynomials are closed under addition. When you add polynomials, the result will always be a polynomial. B. Polynomials are closed under subtraction.

A box contains 18 blue flashlights, 3 red flashlights, 7 silver flashlights, and 2 black flashlights. The flashlights are identical in size and shape.

At Carter's birthday party his mom made a cake in a rectangular shape. The length of the cake is 8cm and width of cake is 6cm. If she wants to add 1 cm of cream around the cake what will be the perimeter and area of the of the rectangle cake?

Joan Barrett has $10,000 in a savings account which pays 6.5% annual interest. She is thinking about buying ten $1,000 bonds which pay 8% annual interest. How much more annual interest will the bonds eam than the savings account?

An ant can travel at a constant speed of 980 inches every 5 minutes. How far does the ant travel in 1 minute? The ant travels 196 inches in 1 minute just divide the number 5 and 980. At this rate, how far can an ant travel in 7 minutes?

Solve the equation 9x² - 29x - 28 = 0 Give your answers to 2 decimal places when appropriate

For the school play, adult tickets cost $4 and children tickets cost $2. Natalie is working at the tickets counter just sold $20 worth of tickets. What are all of the possible ticket combo of $20 worth of tickets

Using the document "FOR TEST - ACME Building Diagram" which you were asked to download from the course, calculate the heat from transmission 0 -11275 Btu/hr 12275 Btu/hr -12475 Btu/hr -13275 Btu/hr

The name of the triangle whose interior angles each measure 90 degrees.?

A rectangle is 4 feet wide and 10 feet long. What is the length of its diagonal