3. Sherri bought a package of pens that contained 15 pens. How many packages should she

buy if she needs 240 pens?

What is the value of (3^6 : 3^5) ^2? 1 3 9 27

Find an equation in standard form for the ellipse with the vertical major axis of length 18 and minor axis of length 16.

The length of a rectangle is four times its width. The rectangle has an area of 1024cm^2. Work out the width of the rectangle.

A magazine editor wants to know what percent of people ski. She chooses people randomly on a winter weekend and calls them at home to ask whether they ski. What is the bias in this situation?

1 / Assume that the distribution of residuals is approximately normal with mean 0 cm and standard deviation 5.9cm. What percent of the residuals are greater than 8cm? Justify your answer.

By how many is 6 less than 14

In order for a film camera with a lens of fixed focal length F to focus on an object located a distance x from the lens, the film must be placed a distance y behind the lens. F, y, and x are related as follows: 1/F=1/X + 1/Y.

I am a number between 20 and 30. I am not divisible by 6. and the sum of my factors is 31. What number am I?

3 divided by 579 and show the work

A flower garden is 4 feet longer than its width w. Write a polynomial the represents the area of the garden.