A pyramid has all sides that are equilateral triangles. Each triangle has side lengths of 9 centimeters. If the surface area of the pyramid is 140.4 square centimeters, what is the slant height of the pyramid?

What is $1.12 for 8.2oz

A magician shuffles a standard deck of playing cards and allows an audience member to pull out a card, look at it, and replace it in the deck. Three additional people do the same.

Which value of y will make the inequality y<-1 false

A researcher conducts a study and finds that the outcome measure is normally distributed with a mean of 57, a median of 56, and a standard deviation of 6. Approximately 95% of the sample falls between which two values?

Angela weighs 15% less than she did one year ago. Which of the statements below is true? Angela's current weight is 15% of her weight one year ago. Angela's weight one year ago is 85% of her current weight.

This problem is about exact differential equations. This is the problem: y' = (3x^2+4x-4) / (2y-4)

The first week at robs new job he spent 12.84, 9.50, 10.25, 4.99, 8.59 on lunch In the second week, he spent $3.00 more in total for the 5 lunches than the first week What is the increase in the mean for the second week compared to the first?

What is the sum of the complex number 2+3i and 4+8i, where i=√-1?

Find the missing angle

At Brian's Bookstore, 0.3 of the shelves hold mysteries, 25% of the shelves hold travel books, and 7/20 of the shelves hold children's books. Which type of book covers the most shelf space in the store? Explain how you arrived at your answer.